Implementing a game to iPad and iPhone

I would like to implement a simple, multi-player version of the classic "pong" game for the iPad and iPhone. Graphics are *very* simple -- I don't need much more than the classic game (see here [login to view URL]) The twist to this game is that it requires two players, each of which is using their own iPad or iPhone. Each iPad/iPhone sees the entirety of the game screen, but the game screen is shared with the other player. Each player can control their own paddle only. The task is to design the game, implement the "shared screen" functionality, and get everything ready for delivery to the Apple store for sale.