I've been playing with Mint Source. This is a sheepish kind of RSS aggregator thingy which you can get the source of and fiddle with. It is also a cute addition to your desktop and you can even get him out of his box and play with him. He arrives pre-connected to interesting feeds about Imagine Cup and stuff, but as you can grab hold of his settings and make him do anything you like. I'd love it if he gave a little dance with something new arrived, and he is just crying out (but silently) for sound effects....

He comes in evil and nice incarnations and you can get hold of him at http://www.microsoft.com/uk/academia/mintsource