Mophie's iPhone 4 case doubles your battery life in a slim design
The Juice Pack Air is a decent looker considering what it's housing, but Mophie has gone for the soft-touch coating instead of the glossy plastic used in its previous cases, giving your iPhone 4 a more subtle look. The charging is done via pass-through USB, there are four LED status lights on it, and it snaps in place around the top and bottom of the phone. Mophie's creation should cost around $79, and be available as early as next week.
iPhone 4 Specifications | Review