Nothing better than some Vaporware than on a Friday. A company called Essential TPE says they’ve got plans for an iPhone battery pack that mimics the iPhone’s battery icon. It plugs into the 30-pin dock connector and using EL film on its front panel it displays the battery juice as it is drained, just like on the iPhone. They say it adds up to 3 hours of talk time over 3G or 5+ hours of WiFi browsing. Surprisingly, no price or launch date is listed.