This is awesome; am ordering a dongle right away!

Did some digging and there's a whole load of things which can potentially be picked up, including dead satellites [0]. RTL-SDR.com has a whole load of awesome looking tutorials [1].

[0] http://www.rtl-sdr.com/receiving-dead-satellites-rtl-sdr/ [1] http://www.rtl-sdr.com/category/tutorial/