Hacker
Get over your fear, or we will know...
Shazam for hotdogs, detect if a hotdog is present in an image
Getting positive and negative reviews about a product from twitter
Play music on multiple devices simultaneously
See where you stand in the open source world.
Youtube on all nearby devices, IN SYNC
Offline access to Wikipedia, G-Places, or your own PC, VIA SMS.
Voice in Data Out
Saving people from sun's wrath
Inside a virtual shop.