The document provides an overview of global mobile advertising trends in Q3 2011 based on data from the InMobi mobile advertising network. Some key points: - Mobile ad impressions on the InMobi network grew 32.6% from Q2 2011 to Q3 2011, totaling over 138 billion impressions. - Smartphone impressions grew 52.6% and now make up 43% of all mobile ad impressions, significantly outpacing growth on advanced phones. - While in-app advertising is growing quickly, it still only accounts for 21% of impressions, with most ads still delivered via the mobile web. - Android gained the most share, increasing by 7.2 points to become the leading

1. A GLOBAL VIEW OF MOBILE ADVERTISING:
Global Summary Q3 2011
InMobi Mobile Insights - Network Data
Release date: October 25, 2011

2. ABOUT THE RESEARCH
Project Background
After launching in 2007 in Asia, InMobi quickly grew to become the world's largest independent
mobile advertising network. In the third quarter of 2011, we served 138.4 billion impressions in 165
markets worldwide. With a physical presence in 5 continents, over 5,500 publisher partners, and a
broad, independent market footprint, InMobi is well positioned to provide an objective,
comprehensive, and representative view of the mobile advertising market.
Research Objectives
We have three goals with this research:
1. Help educate the market. Statistics and information about the state of mobile
advertising are lacking in most regions of the world.
2. Track consumer opinions regarding mobile advertising. With any emerging
medium, the consumer perspective is critical to overall market success. We see
a need for trending across regions in this area.
3. Collaborate with industry thought leaders to increase market insight and improve
information quality ongoing. As a global independent company, we value
partnerships that will strengthen our understanding of the market. Researchers,
thought-leaders, and analysts are encouraged to contact us and apply for full
partner access.
Beginning July 2011, InMobi is moving towards
Contact Information quarterly data views which will highlight broader
www.inmobi.com/research industry trends and provide an overview of the
research@inmobi.com
global mobile advertising market.
Twitter: @inmobi

3. NETWORK DATA
Specifications
Data in this report are sourced from our global mobile advertising network which served 138.4 billion
impressions in the third quarter of 2011. With 165 countries receiving over 50.4 billion impressions in
September, we are able to claim one of the broadest and most representative networks in the world. Exact
specifications are as follows:
• Global Available Impressions in Quarter 3, 2011: 138.4 billion
• Regions Represented: Africa, Asia Pacific, Europe, Middle East, North America, and South America
• Countries Represented: 131 countries with over 10 million impressions per month
• Base Measure: Available Impressions
• Reports: Market Summary, Manufacturer Share, OS Share, and Top Handsets & Connected Devices
• Time Periods: Q2 2011 (April – June 2011), Q3 2011 (July – September 2011)
• Comparisons: Q3 2011 versus Q2 2011
Representation
InMobi is committed to an independent and transparent leadership position in mobile advertising. With that in mind,
the following issues are present in this data.
Mobile Advertising Market Definition: This report covers mobile display advertising only including both Mobile Web
(WAP) and APP. SMS/Text and Search are NOT included in this synopsis.
Scale and Time In Market: Representation within the network is a function of the both scale and time in market.
Readers can expect more fluctuation and variance in younger, smaller markets for the company.
Publisher Mix: As with any ad network, market representation is a function of the publisher mix. We have over
5,000 publishers of all sizes and content types, but changes to the publisher mix in a given market could impact the
data.
Advertiser Mix: Similar to publisher mix, the advertiser mix could impact the numbers in our network, although to a
much lesser extent than publishers.

4. GLOBAL SUMMARY
The global mobile ad ecosystem
continues its significant growth,
increasing ad impressions by 32.6%
from Q2 2011 to Q3 2011.
" The InMobi network gained nearly 34 billion ad
requests in Q3 2011. Continued significant
growth in the global mobile ecosystem highlights
the healthy mix of increasing consumer mobile
usage, advertiser adoption and publisher focus
on mobile advertising.
Smartphone impression growth far
outpaces advanced phones.
Smartphones now represent 43% of
all mobile ads on the InMobi
network.
" 52% growth in impressions on Smartphones over
the past quarter clearly underlines the shift
towards Smartphone usage among consumers
globally.
Available Impression Volume & Composition
Q2 2011 Q3 2011 % Chg In-application advertising continues
Total 104,334,888,661 138,351,025,951 32.6% to grow quickly, although it only
Smartphone 39,314,783,903 59,979,601,147 52.6% represents 21% of all mobile ads on
Advanced 65,020,104,758 78,371,424,804 20.5%
the InMobi network.
Mobile Web 86,948,843,684 109,314,697,724 25.7% " In application ads are highly utilized in only a few
App 17,386,044,977 29,036,328,227 67.0% key markets across the globe. Globally, most
mobile ads are still delivered in the mobile web
experience that is platform agnostic.
Source: InMobi Mobile Insights – Network Research, Q3 2011

5. GLOBAL
Global OS Share: Q3 2011
Available Impressions
OS Impressions % Share Pt. Chg
Android
21%
Android 31,095,406,496 22.5% +7.2
22%
Nokia OS
Nokia OS 25,183,777,402 18.2% -1.8
Symbian OS
Symbian OS 24,348,191,250 17.6% -1.5
iPhone OS
10%
iPhone OS 15,222,377,217 11.0% -3.8
RIM OS
18%
RIM OS 13,269,885,290 9.6% +3.6
Others
11%
Others 29,231,388,297 21.1% -3.7
18%
Android OS gained 7.2 share points and surpassed both the leading operating systems,
Nokia and Symbian.
" Although iPhone OS gained significant traction in Q2 2011, Android OS growth has outpaced all the leading OS’s on the
InMobi network over the past quarter.
" Ad impressions are fairly well distributed across the top 4 mobile platforms. Android is controlling over 20% of impression
share.
Source: InMobi Mobile Insights – Network Research, Q3 2011

6. GLOBAL
Global Manufacturer Share: Q3 2011
Available Impressions
1%
3%
Manufacturer Impressions % Share Pt. Chg
6%
Nokia
Nokia 49,491,045,378 35.8% -3.2
Samsung
4%
Samsung 24,747,590,276 17.9% +3.1
Apple
6%
36%
Apple 15,222,377,217 11.0% -3.8
RIM
RIM 13,269,885,290 9.6% +3.6
6%
HTC
HTC 8,190,274,125 5.9% +0.9
SonyEricsson
10%
SonyEricsson 7,872,153,468 5.7% -1.5
LG
LG 5,700,658,465 4.1% +0.1
Motorola Motorola 3,648,747,769 2.6% -0.5
11%
18%
DoCoMo DoCoMo 1,962,380,787 1.4% +1.3
Others
Others 8,245,913,176 6.0% +0.1
Nokia holds the top manufacturer spot by global ad impressions, holding a commanding
35.8% share of impressions.
" Samsung gained 3.1 share points to surpass Apple and secure the 2nd spot in the manufacturer category.
" Outside of the top 3 manufacturers, the global ad impression market is considerably fragmented across the remaining 5
major manufacturers.
Source: InMobi Mobile Insights – Network Research, Q3 2011

7. GLOBAL
Global Handset and Connected Device Detail: Q3 2011
Handset Impressions % Share Pt Chg
Apple iPhone 4 5,703,047,167 4.1% +0.7
RIM BlackBerry 8520 4,119,025,675 3.0% +0.6
Nokia 6300 2,503,775,917 1.8% -0.4
Nokia 5233 2,360,111,627 1.7% +0.3
RIM BlackBerry 9800 2,356,015,544 1.7% +1.2
Nokia 3110c 2,106,099,465 1.5% -0.5
Apple iPod Generation IV 2,018,186,153 1.5% +0.5
Apple iPad I 1,910,102,922 1.4% +0.2
HTC 001HT 1,868,878,125 1.4% +1.3
Nokia C3-00 1,860,928,144 1.3% +0.0
Nokia C1-01 1,747,778,250 1.3% +0.5
Nokia N73 1,744,569,994 1.3% -0.2
RIM BlackBerry 9700 1,705,622,822 1.2% +0.5
RIM BlackBerry 9300 1,674,867,330 1.2% +0.6
Samsung GT-I9000 1,641,743,468 1.2% -0.0
The Apple iPhone gained 0.7 share points to remain the top device globally. 6 of the
top 15 handsets are Nokia devices.
" The Apple iPhone 4 is the top device by share of impressions.
" The top 10 handsets are mostly smartphones, once again underlining the rich opportunity for advertisers to reach audiences
at scale with rich experiences.
Source: InMobi Mobile Insights – Network Research, Q3 2011

8. GLOBAL
Global Summary: Q3 2011
Available Impression Volume & Composition Top 5 Manufacturers: % Share of Available Impressions
Q2 2011 Q3 2011 % Chg Q2 2011 Q3 2011 Pt. Chg
Total 104,334,888,661 138,351,025,951 32.6% Nokia 39.0% 35.8% -3.2
Smartphone 39,314,783,903 59,979,601,147 52.6% Samsung 14.8% 17.9% +3.1
Advanced 65,020,104,758 78,371,424,804 20.5% Apple 14.8% 11.0% -3.8
Mobile Web 86,948,843,684 109,314,697,724 25.7% RIM 6.0% 9.6% +3.6
App 17,386,044,977 29,036,328,227 67.0% HTC 5.0% 5.9% +0.9
Top 10 Handsets: % Share of Available Impressions Top 3 OS Systems: % Share of Available Impressions
Q2 2011 Q3 2011 Pt. Chg Q2 2011 Q3 2011 Pt. Chg
Apple iPhone 4 3.5% 4.1% +0.7
Android 15.3% 22.5% +7.2
RIM BlackBerry 8520 2.4% 3.0% +0.6
Nokia OS 20.0% 18.2% -1.8
Nokia 6300 2.2% 1.8% -0.4
Nokia 5233 1.4% 1.7% +0.3 Symbian OS 19.1% 17.6% -1.5
RIM BlackBerry 9800 0.5% 1.7% +1.2
Nokia 3110c 2.0% 1.5% -0.5
" The InMobi global network grew by over 34
Apple iPod Generation IV 1.0% 1.5% +0.5
billion impressions over the past quarter.
Apple iPad I 1.2% 1.4% +0.2
HTC 001HT 0.0% 1.4% +1.3 " The 52.6% growth in smartphone ad
Nokia C3-00 1.3% 1.3% +0.0 impressions and 67% growth in application
ads points towards increasing consumer
adoption of smartphones and the popularity of
applications.
" Among the top 3 operating systems, only
Android managed to gain share points (+7.2).
Source: InMobi Mobile Insights – Network Research, Q3 2011

9. MEASURES AND TERM DEFINITIONS
Measures:
Available Impressions: The total number of ads requests made to the InMobi network
% Share (of Available Impressions): The % of total available impressions in the specified region allocated to the inventory type, device,
manufacturer, or OS under analysis.
Global Development Index: An index of the % share of the inventory type, device, manufacturer, or OS under analysis in the specified
region or country relative to that same inventory type, device, manufacturer, or OS share globally.
Regional Development Index: Global Development Index: An index of the % share of the inventory type, device, manufacturer, or OS
under analysis in the specified country relative to that same inventory type, device, manufacturer, or OS share in the relevant region.
% Chg: The percentage change in absolute value between two different time periods.
Pt Chg: The difference between two share percentages for an inventory type, device, manufacturer, or OS under analysis in different time
periods.
Definitions:
Smartphone: Any impression served to an iPhone OS, Android OS, RIM OS, webOS, Windows Mobile OS, Linux Smartphone OS, Palm
OS, Nokia N & E Series Phones, or Samsung Bada.
Advanced: Any impression served to any OS or handset not included in the smart phone definition above.
Mobile Web: Any impression served using Wireless Application Protocol (WAP) which is an open international standard for application-
layer network communications in a wireless-communication environment.
App (Application): Any impressions served to a mobile application resident on the consumer mobile device.
Carrier: The mobile network operator (MNO), carrier service provider (CSP), wireless service provider, wireless carrier, or cellular
company providing service for mobile phone subscriber served the impression.
OS (Operating System): The system software (programs and data) running on the mobile devices that manages the hardware and
provides common services for execution of various application software receiving the impression.
Handsets and Connected Device: The make and model of the mobile device receiving the impression.
Manufacturer: The OEM manufacturer of the mobile device receiving the impression.
Other: An aggregation of any remaining impressions not specifically detailed previously. Typically an aggregation of everything under 1%
share.
InMobi Regional Definitions:
InMobi defines all regions per Wikipedia with the following modifications:
“Asia Pacific” includes the 15 Oceania countries as listed in Wikipedia.
“South America” includes South & Central Americas as listed in Wikipedia.

10. NEXT STEPS
This data is part of a series of network reports that are released monthly.
Additional regions and markets will be released throughout the quarter.
Release Schedule
Once a quarter InMobi will release a full data report which will include global, regional and country
data views. The next full release is planned for mid October. Monthly data updates including key
information by market will be released via our mailing lists and website.
While we move to a quarterly release schedule, we will still continue to releases insightful data on
key markets across regions on a monthly basis. These releases will shed light on emerging trends
and unique developments specific to those key markets.
Open Source Research: Getting Involved
Objective industry analysts and thought-leaders are encouraged to comment, question, and
participate. We will be sure to consider and update the research based on feedback and questions
to improve the quality for all end users.
To join our monthly research mailing list, contact us at Research@InMobi.com
To download the full reports, visit us at www.InMobi.com/research