I just found this today.
Basically, Nokia wants feedback on the N9 user interface -- your ideas of how to improve it. You write up your idea and other people can log into the site and vote for their favorites. Every week they look at the 15 most 'liked' ideas from the previous week, and the 3 judges (Nokia employees) decide which one is best and whoever submitted it will get an N9 for their efforts.
The first week is almost over, so I guess don't submit your idea today! They already have 660+ ideas and I can't find an easy way to browse them
Even if you don't have any idea of your own, please consider looking at and liking other ones. If Nokia actually pays attention we all win

Here is the site:
http://www.ideasproject.com/community/en/n9