In the market for a case for your iPhone 3G (a scratch and smudge magnet if their every was one), but don't won't to add much - if any - bulk to your sleek new smartphone? Then perhaps Air Jacket ($34.95) from Power Support is for you. The less than a millimeter-thick Air Jacket (available in clear or Black) is a hard backing that fits snugly to the back of the iPhone and promises to fully protect the iPhone from scratches, dust, and impacts. The package also includes Anti Glare and Crystal Films to keep the iPhone's display safe. You can learn more about Air Jacket here.