At the announcment of the UMPC, Microsoft unveiled new touchscreen software called Touch Pack. Designed exclusively for the UMPC the Touch Pack takes advantage of the enhanced touch screen capbilities of these new devices.
Touch Pack contains five features: A program launcher, DialKeys, Touch Improvements, a UMPC specfic version of Media Player, and a touch screen version of the game Sudoku.
You can check out more on each of these features here.
