Rob Hearn sends in a piece up at PocketGamer.co.uk on why Apple suddenly pulled Manomio's C64 emulator soon after finally approving it. (El Reg has coverage too.)
"It was a glorious few moments for retro gamers when Manomio's C64 emulator was finally approved by Apple and released to the eager, nostalgic iPhone public. Then, calamity! It was gone again. Apparently some wily users figured out how to access the Commodore 64 BASIC system that was originally packaged with the emulator — something that Apple wasn't too happy with, given the nature of the interpreter's code. By setting the keyboard to 'always on', launching a game and restarting BASIC, players got into the 'empty shell' of their C64 emulator."