UIUC was 2nd. I was on this team. We did a Street Fighter browser-based game controlled by webcam. You can play against friends over the internet in realtime.

MIT was 3rd with a chrome extension called "minimap" that allows you to scroll in your browser with smartphone or webcam. Also allows you to have a "minimap" next to your scrollbar that shows a preview of the entire webpage

CMU got an honorable mention for a real time strategy (?) game called "The Hackers" that is based on managing a team for a hackathon.

UBC was there, but I've forgotten what their hack was. Sorry! Was really tired and nervous during demos!

Facebook showed me the time of my life. Eager to apply for a job there...

UBC made a "pager" for facebook using a LCD display and controlled by an arduino. We built the hardware, case, and were able to push "pokes", wall posts, and messages to the pager. From the pager, we had two buttons that would push back to either dismiss the message or "like"/poke back.