If you aren’t familiar with Vito Technology’s apps, here’s a rundown. Star Walk is a tool for stargazing; it helps you identify the objects and structures in the night sky. Solar Walk is a 3D model of the Solar System and Geo Walk is a 3D world fact book. These apps are great for anyone who has even the mildest of interest in astronomy, the solar system or Earth.

Vito Technology is celebrating the second birthday of their app by way of an update that brings augmented reality to your iPod Touch. For iPhone 4 users, the new version of Star Walk brings in real-time satellite tracking, a calibration tool, TelRad, and other new contents. If you have not installed Star Walk before and have no idea what this app can do, it basically turns your iOS device into a personal planetarium which answers some of the things you want to know about the sky.

If you’re at all interested in astronomy, Star Walk is a fantastic resource for an evening of star gazing. If you’re not into astronomy, you just may be after playing around with this. Yes, it’s educational, but more importantly, it’s very cool. It’s also easy to use, so you can spend more time looking at the sky and less time pushing buttons. Get this app, you won’t be disappointed.