Tekkeon has rolled out its new myPower battery case for the iPhone 4. The myPower features the company’s new “eSwap” technology, and houses the battery in a separate module so that it may be exchanged with a fresh battery on-the-go. Other features include a two-piece slide-together design, pass-through ports for the speaker and microphone, open access to the cameras, volume buttons, ring/silent switch, and sleep/wake button,…
