This document discusses usability considerations for mobile applications. It notes that over 90% of Europeans and 41% of people worldwide now have mobile phones. It then provides recommendations for mobile web design, including using simple shallow navigation structures, optimized content for mobile screens, and designing for degradation without CSS. It also recommends best practices for mobile application design like optimizing interactions for specific devices and minimizing data entry.

1. Usability in Mobile Applications BRUNO FIGUEIREDO the_ml

2. Europe: 90.9% have a mobile 41% worldwide (2,67 billion) ██ 120% > ██ 100-120% ██ 80-100% ██ < 80% wikipedia

3. Adapted from Bill Moggridge & Jan Borchers Market Evolution Sweet Spot

4. PDAs Keyboard, Touchscreen Mobile Phone Types dotMobi Feature Phones Phone, SMS, Internet Smart Phones Applications

5. Mobile Web Sites moritz™

6. Screen Resolution and Formats dotMobi

7. Mobile Development Languages Wikipedia

8. Regular Web, Mobile version

9. Auntie P

10. Mobile Web

11. Main Mobile Browsers Pocket Internet Explorer Opera Mobile Safari Mobile

12. Hub and Spoke Home

13. Simple Hierarchy

14. Clickstream Brian Fling

15. Home Heading Navigation Footer Section 2 Highlights Section 1 Highlights Section 1 Heading Navigation Footer Content Section 2 Heading Navigation Footer Content Aux. Section Heading Navigation Footer Content Recomended Structure

16. Optimized Degradation Normal Without CSS

17. Horizontal Lines and Breadcrumbs Optimized for vertical navigation Breadcrumbs: only useful for more than 3 levels deep

18. Forms

19. Shortcut Keys

20. The Magic Number (+ or – 2) George Miller

23. Mobile Applications Tim Caynes

24. Main Mobile Platforms Symbian 65% Windows Mobile 12% BlackBerry 11% iPhone 7%

25. liewcf Numeric Keyboard and Joystick

26. StarrGazr Half Keyboard and Ball

27. KhE 龙 Cursor Keys

28. Crouching Donkey Touchscreen (Multi-touch)

29. Full Keyboard and Touchscreen

30. Card Stack Screens with subtle animations

31. Two Panels List + Detail

32. Fisheye Lens

33. Distortion Lens

34. Predictive Text

35. Availability Restrictions

36. Progressive Filtering

37. Rapid Serial Visual Presentation 50 miliseconds Robert Spencer

39. [email_address] Thank you gailjadehamilton