Microsoft is pushing hard to get as many top-tier apps as possible ported to Windows Phone
, and sure enough, Rovio is playing nice. One of the world's most popular mobile games is coming back to Windows Phone in a major way. Rovio is re-launching the original Angry Birds for Windows Phone, adding over 400 levels and being free to download through 5/15. The Windows Phone 8 version will also have Xbox Live integration with new achievements and leaderboards.
This will be a completely separate download from the original Angry Birds title that some of you may already own; the reason the company is re-releasing it is to make it "technically easier for Rovio to support in the future." In other words, even lower-end devices should be able to indulge. Enjoy!