A buddy of mine owns the same thing. He doesn't have an iPad, but he bought it because it was cheap ($15 at a thrift shop) and loves anything to do with arcades. He also intends on eventually modding it into a MAME cab, but wants to build sort of an "extension" onto the bottom, which will house a mini ITX motherboard and other components (if they're small enough). He's not even close to starting on it, but it sounds like a fun concept.