Angry Birds Star Wars is out now for 99 cents on iPhone, $2.99 on iPad, in HD format on Android for $2.99, on regular format for Android for free (with ads), on Windows for $4.99 (including Windows 8), on Mac for $4.99, on Kindle Tablet for $2.99, and on Windows Phone 8 for 99 cents.
According to Nokia, Angry Birds Star Wars will also be available for Windows Phone 7.5 once Rovio and Nokia "make sure everything works as well as it can".
I just played through the Tatooine level, and it's actually pretty fun. It's essentially a blend of Angry Birds and Angry Birds Space with lightsabers, blasters, and the force, but the latter are implemented well and make for an entertaining experience.