Bingo, plus any other iPhone gaming-related sites/forums you're a member of, if any (for me, it was just TA and the Com2uS forum).
Applied on 8/7 (the link in the first post still says 9 Innings beta testers wanted, so hopefully it went to the right place)
Just sent my application, 7th August at about 9pm EST Can't wait for this, looks really interesting!!