FLIPR, a fun way to make collaborative time-lapse animations.
Link: http://locast.mit.edu/flipr/

FLIPR is a mobile application developed by the Mobile Experience Lab in collaboration with the Turkish mobile operator Avea.

A Flip is a time-lapse animation composed of several snapshots – it can be created by a single person, or can be a collaborative project to which many people can contribute photos. The mobile application is designed to ease the process of lining up subsequent frames and displays the location of nearby Flips to the user as they travel through the city.