The BungeeAir case resembles the company’s earlier PowerGuard, and separates into two pieces: one is the back plate, which holds the battery and plugs into the iPhone 4’s Dock Connector port, while the other is a plastic frame that snaps into place and protects the device’s sides. It should be noted that while the pieces snap together, and there’s a sliding mechanism to hold the front frame in place, there’s no physical…
