148Apps has done a little bit of digging, and has possibly discovered what Angry Birds creators Rovio are up to next. Rovio recently released a thank you/teaser video for a full billion Angry Birds downloads, and in the very end of that video, a character appears: It's a younger kid, with some pulleys and balloons in the background.
Haven't we seen that kid before? Indeed, it appears to be Casey, of Casey's Contraptions, an iOS game that came out around this time last year. That
