Yamake
Somewhat defying description, Yamake will allow people to make and share their own mini-games using photos, videos, audio and text from their phone. The games can be shared on the internet through the N-Gage Arena online service.
We really don't know much about this so far, but the concept sounds very interesting. See the official press release for more details.
One thing we do know is that it's from Gameware Development, the makers of Creebies.
Yamake Short Film (not actual gameplay, just for fun):
Yamake Shortfilm from Yamake on Vimeo.
