Marware has announced the Game Grip
(http://www.marware.com/PRODUCTS/iPhone-3g-cases/Game-Grip ) for the
iPhone 3G and the iPod touch 2G. The silicone handle grips on the
controller provide comfort for longer gaming sessions, and a cord
management solution allows you to use your headphones and charging
cable while you play, according to the folks at Marware.

The Game Grip also supports an optional, removable battery pack
solution from Marware (sold separately) that can give you added power
while gaming. Simply slide the battery pack onto the back of the Game
Grip, and attach the cable.

The Game Grip comes with two silicone skins, a game controller with
interchangeable silicone grips, cord management, and an optional
battery pack solution. It’s available in smooth black with blue
handle grips. It retails for US$49.99 (USD) and is available for
pre-order online.