StarTracker for iPhone 4S
This is a Star Gazing application which will guide you to recogonize all the
bright stars in the night sky! Just hold up and point the phone at the sky
to see what stars, constellations and deep sky objects you are looking at in
realtime. Full utilization of the build-in gyroscope, digital compass and
accelerometer drive the best user experience.
Link: http://itunes.apple.com/app/startracker-for-iphone-4s/id4823787
