Didn't look right adding this to the list of iPhone games currently on offer on iTunes so made a new post, free free to add more non-game apps below.
First time at 59p since last November (probably last Black Friday), previous price £1.79.
Star Walk is your personal planetarium that can answer all of your curiosities about the sky! For anyone who is interested in stargazing, amateurs or professionals Star Walk makes discovering more than 9,000 stars, planets, constellations, and messier objects as beautiful and easy as it has never been before!
Use the Star Spotter function to see the sky in front of you in real-time. Tilt your iPhone towards the sky to activate the DIGITAL COMPASS which will determine location and orientation of your phone. The image on your screen will correspond to the area of the sky you are pointing your phone towards, and it will follow your movements. Please note that this function is available on iPhone 3GS/4 devices only.