I am thinking about entering myself.

http://developer.ubuntu.com/showdown/

Welcome to the Ubuntu App Showdown, an exciting contest to create an app from scratch for Ubuntu in three weeks, and delivered in the Ubuntu Software Centre.

The best apps will win some awesome prizes from System76 and Qt including a System76 Gazelle Professional laptop and Nokia N9 phone for the gold prize, a System76 Lemur Ultra laptop and Nokia N9 phone for the silver prize and a Nokia N9 phone for the bronze prize.

After the contest the community will vote on all of the apps in the Ubuntu Software Centre and there are another three Nokia N9 phones up for grabs!