Thanks to the ESRB rating board, and a bit of digging, we can reveal Airace is coming soon to Nintendo DSiWare.

Developed by No Way Studios, a division of Qubic Games, Airace is a plane racing game with your classic Kart style weapon pickups. Despite the simple concept the game looks quite good, bringing back memories of Diddy Kong Racing and Dreamcast's Toy Commander.

The ESRB rating suggests that the DSiWare version may be called AiRace: Tunnel, so it may be a limited version of a game to be released in retail later. There is also no word on online multiplayer, but I would expect it to be local download only.

You can check out the official website for more details.