My co-worker, Chris, https://twitter.com/ckalima, and I hacked up a little project hours before Coachella 2012 Weekend 1 started: http://coachellagram.com. It displays, in real-time, a feed of Instagram photos taken at Coachella.
It was a great experience learning about pubsub technology, pushing data to browsers, and working with the Instagram API. Instagram has a very rich API and I’m excited to see what people are going to with it in the future.
Stay tuned for Weekend 2! at http://coachellagram.com
UPDATE: Coachellagram has been brought down. Sorry if you missed out. We did get some exposure at TNW: http://thenextweb.com/shareables/2012/04/15/check-out-coachellagram-a-rocking-collection-of-instagram-shots-from-indio-california/