Firemint's Flight Control is one of the early games to support the 3.0 firmware's Bluetooth peer to peer gameplay. Prior to 3.0, players would have to be connected to the same Wi-Fi network in order to play any local networking games. With 3.0, all you need are two iPhones (or iPod Touches) with Bluetooth.
When you set up a Peer to Peer game, you are sharing flight control duties with your friend. In this level example, one person lands all the red planes, while the other lands the yellow planes and helicopters.
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Seems simple but all types of planes still appear in on each screen and you need to divert them to the other player's screen still while avoiding collisions. You both share a common cumulative score for the session. A very exciting new use for the Peer to Peer gaming option in 3.0.
Meanwhile, it seems that Firemint is branching out into merchandising with a new shop set up to sell Flight Control branded mugs and steins.
To turn on Bluetooth, you have to go to Settings -> General -> Bluetooth and turn it on. Only the iPhone 3G, 3G S and the 2nd Generation iPod Touch can use Peer to Peer Bluetooth.
App Store Link: Flight Control, $0.99