The document discusses mobile platforms for developing applications, comparing Android and iPhone. It provides information on SDKs, application stores, distribution methods, and the architectures of Android and iPhone. Advantages of iPhone include hype and publicity, while advantages of Android include openness, ability to integrate location and calling features, and potential for cross-device communication through intents and content providers. However, Android also faces potential hardware fragmentation issues.

1. Android, iPhone and application development Kieran Gutteridge OpenMIC, Bath 2009

2. Who's who Kieran Gutteridge, CTO Intohand Developing for small screen devices since 2002, Experience with porting from various platforms Java Mobile, Android, iPhone wap, xHtml php, j2ee Intohand Ltd Mobile consultancy Mobile application development wamtag: social network

3. SDK:- Discovery, installation, notes Android SDK is available at http://developer.android.com/ iPhone SDK is available at http://developer.apple.com/iphone/ Android emulator is very feature rich simulates sms simulates network load iPhone SDK is available for free, but you will need to pay $99 for a developer certificate to provision an actual device

4. Application Stores Device application stores App store (iPhone) Android market (G1) App World (Blackberry) OVI (Nokia) App Catalog (Palm) Skymarket (Windows Mobile) Mobile application stores Handango GetJar Traditional Carriers fragmentation

5. Why develop for a platform? Cost Low High Difficult Easy Symbian Wimo J2ME iPhone Android

6. Payment Mechanisms Cost Geo Reach Low High High Low psms Carrier Wap Billing Application Stores CC

7. Distribution, certification J2ME, Symbian Java Verified, Symbian Signed iPhone Apple vet applications Android Marketplace is self signed applications User has to trust developer, similar to internet model Largely unregulated at present Open handset alliance Members include: T-Mobile, Sprint Nextel, Telefonica, TIM, China Mobile Google, eBay, Intel, Nvidia, Qualcomm, HTC, Motorola, LG, Samsung Some notable exceptions Nokia, AT&T, Verizon

8. Android Architecture

9. iPhone Architecture http://developer.apple.com/iphone/library/documentation

10. Advantages / Disadvantages iPhone has a lot of hype, easier to get publicity in the short term only allows one application to run at a given time Apple are the gatekeeper no telephony access from within the SDK Android Content providers and intents allow applications to communicate with each other #open intents GPS as a content provider Level of phone access for location and telephony e.g. #0870 leads to ability to make services that can only be achieved on mobile Unregulated marketplace Potential hardware fragmentation

11. Questions