Last month, January 27-29th, I was at the Global Game Jam in Antwerp (http://globalgamejam.be/).
The team I joined made a game where you have to build your island village into the sky to protect the inhabitants against the flooding water.
You can download it here: http://globalgamejam.org/2011/stacking-island
I did some modeling and textures for the props that the buildings are created from.