Google Sky Map

Google Sky Map turns your Android-powered mobile phone into a window on the night sky. When you Point your phone at the sky, and Google Sky Map will show the stars, planets, constellations, and more to help you identify the celestial objects in view. You can also browse the skies in manual mode.

If you install the application and run it. The application needs to find you GPS location among other things, but in this beta version there is no "loading" screen so your phone will "go black" and seem non-responsive. Pressing buttons will likely entice a Force Close option but if you just wait it out, the Sky Map will appear.

Find more information - http://www.livestreamsblog.com/2010/09/25/google-sky-map/