- iTunes U from RWTH Aachen: iPhone Application Programming WS 11/12
- video2brain: Apps mit iOS 5 entwickeln
- LiveCode: a cross platform app development tool
- Glyph Designer: the iOS Font Editor
- App Design Vault: How to Design An App
- Open Source: Library For Creating An Animated Curved Menu
- Open Source: the Baker eBook Framework
- Mail app style Split View Controller with a sliding master view
- Creating Gesture Recognizers with Interface Builder