Here is an overview of the official user interface (UI) and user experience (UX) guidelines, which can by used as inspiration for mobile web and app design.
- iPhone Human Interface Guidelines – PDF version
- iPad Human Interface Guidelines – PDF version
- UI Guidelines for BlackBerry 6.0 Smartphones – PDF version
- UI Guidelines for BlackBerry 4.x, 5.x Smartphones – PDF version
- Android User Interface Guidelines
- BlackBerry Browser Content Design Guidelines (PDF)
- Motorola’s Best Practices for Android UI
- Nokia Design & User Experience Library
- Symbian^3 UI Style Guidelines (PDF)
- Forum Nokia Design Portal (PDF)
- Symbian UI Wiki
- Nokia Series 40 UI Style Guide
- Bada Application UI Guide
- Sony Ericsson UI Rulebook
- UI Guidelines for Windows Mobile
- Windows Touch UI Guideline
- UI Design & Interaction Guide for Windows Phone 7 (PDF)
- webOS UI Guidelines
- Hildon UI Guidelines for Nokia Maemo
- MeeGo UI Design Guidelines
Source Mobilexweb.com