Need a little help mapping out the night sky? Well… there’s an app for that. Actually there’s a fabulous app for that, winner of the Best App award for 2009 and 2010. Star Walk lets you simply point your device to the sky and automatically map out the constellations. You can also track moving satellites, look at skies from nights past or the future and tap anywhere on the screen to get a star's exact position in the sky. Amazing, and only $2.99. Find it on iTunes.