This art project by Sascha Pohflepp combines a Sony Ericsson k750i with a black case to let you take other people's pictures. The design works by recording what time you click the button to "take" a picture, then later on connects to the internet to scope out shots other people took with that same timestamp.
It takes a few hours/days for people to upload their pictures, so you won't be seeing anything instantly. But it's kind of neat, in a voyeuristic way, to what other people were up to when you were out being a dork using a camera that doesn't really work.
Project Page [Blinks and Buttons via Sci Fi Blog]