I hope the guys working at iTunes are kind and approve the update within a few hours. I really want to play Multiplayer by tomorrow.
This is a huge problem for me and as I can't downgrade to 0.5.0, I hope a update will be released ASAP.
Also, this issue is not only on iOS 6, but also on Android 4.0 ICS, 4.1 JB, and 4.2 JB.
0.6.1 is out for Android