Mophie has started pre-orders for a new Juice Pack Air. The revised battery case is now fully compatible with both AT&T and Verizon iPhone 4s, which differ slightly but can both be accommodated. The case uses a dual-color design available in black and silver, or red and white, an option which will ship later. To make sound clearer, speaker output is funneled from the bottom of an iPhone through to the case's front.
