Also, lots of tabloid style headlines floating around about the store being cracked already. Seems in this particular case, it's trivial to pirate Angry Birds and some other apps, due to them failing to implement the proper checks in their app per the Apple store guidelines. Embedded into each app (including the free ones) is a receipt that contains the DRM piece indicating who bought the app and for what app the receipt is for. If someone copies the receipt from a free app into the Angry Birds app, it will run, as it only verifies a valid receipt is present. It doesn't check to make sure the receipt is for the Angry Birds app like it should.