The official Chinatown Wars website underwent a minor change last night, with updates to the release date and the addition of some new artwork. Rockstar's latest broadcast email confirmed this was the box art and included the Nintendo DS box surround.
Well honestly how fun do you think the game would be with a helicopter. We don't even know the size of the map yet so you might not even need a heli. Plus the controls would probably be pretty crappy on the DS... but I dunno maybe they might end up being in the game.