SkyScout.

The SkyScout is a revolutionary handheld device that uses advanced GPS technology with point and click convenience to identify thousands of stars, planets, constellations and more.

Simply point the SkyScout at any star in the sky and click the target button. The SkyScout will tell you what object you are looking at.

This would have made passing that astronomy final a whole lot simpler. Link -via Geek Alerts