Not really an aiosphere project because of the bandwidth, but worth mentioning.  eStarling makes some cheap wifi picture frames that you can even email pics to.  Such a system is a great foundation for intriguing time-based systems.  A remote cam somewhere, set up to periodically send an image to the frame, makes a wonderful real-time window onto another place in the world.  Imagine a gallery of frames, all windows onto other places in the world?

I imagine outdoor shots, so it could get complex and expensive.  But to test such a system, why not use Panasonic’s low-cost net cam, which can email pics?