Stargazers are in for a bit of a treat today, as Starry Night has announced that that their sky-charting software is now available for free on BlackBerry and iPhone. All you have to do is punch in your ZIP or postal code and you’ll get some coordinates. You can set the time and date of the map, as well as which direction you’re facing. On top of that, if your device is packing GPS, it’ll grab the coordinates from there. For anyone who’s into astronomy, you can download over the air from space.com/nightsky/blackberry.html. We’d be interested in seeing what the coverage is like for their maps, so anyone outside of North America, feel free to drop a comment and let us know how Starry Night works.