Microsoft “You and Your (Virtual) UMPC” Contest –
What you need to do: Submit a photo (no more then 1 MB in size) that depicts the potential power of a UMPC.

What you could win: The three top winners each get a $600 (USD) cash prize. Five runners-up will get a Slingbox™ device, or a cash equivalent if the winner is in a location where they are not available.

Contest Deadline: July 23, 2006
Link: http://origamiproject.com/contest/contest.aspx

Handango UMPC Application Contest –
What you need to do: “By converting your existing mobile applications or creating an entirely new title for Tablet PC and UMPC, you’ll be eligible to win one of three Ultra-Mobile PCs! Personal Productivity, Travel, Fitness, Medical, Multimedia, and Entertainment titles are all great fits for our catalog.”
What you could win: A UMPC! One winner per category!

Contest Deadline: August 31, 2006

Link: Here

Good Luck!