Forum Nokia’s newsletter from today lists a few sample applications that developers can use to learn how to develop with the new Touch UI API:

Developers eager to begin creating touch-enabled applications and content for the new S60 5th Edition now have a library of C++ example applications on Forum Nokia. These examples demonstrate the new features of S60 5th Edition, including the touch UI, tactile feedback, and orientation-awareness. The example applications include Solitaire, a fully optimised game for the new Nokia 5800 XpressMusic device; Image Converter, which showcases the flexibility of the S60 UI by also supporting S60 3rd Edition devices with a keypad; and Memory Game, which demonstrates the use of S60 5th Edition’s built-in Open C++ runtime.