An actual useful Kinect hack!
http://kinectedconference.media.mit.edu/
More annoying than dudes beat-boxing on the side of the street?
http://www.bbc.co.uk/news/uk-12905705
Flash drive camera
http://dvice.com/archives/2011/04/this-flash-driv.php
Amazon CloudPlayer. Ugh, US only at the moment.
http://mashable.com/2011/03/29/amazon-cloud-player/
