Here is the official promotional copy:
Join the Angry Birds in their biggest adventure yet! Grab your lightsaber and join the epic adventure in the legendary Star Wars universe where a group of desperate birds face off against a galactic menace: the Empires evil Pigtroopers! Use the Force, wield your lightsaber, and blast away Pigtroopers on an intergalactic journey with the Xbox game now available on Windows Phone 8 and Windows 8. May the birds be with you!
Rovio Angry Birds Star Wars price of $0.99.