keewee01: Have now changed my Apple ID so hopefully that is the end of it...
Hopefully so. With both Apple and the game company not doing any kind of responsible disclosure around your problem (so far) it is hard to know how the compromise occurred and therefore hard to know if changing your apple id provides any mitigation.
Btw, new post from Anonymous about the origin of the UUIDs.
NSFW language as usual: http://pastie.org/4678441