Lenmar Battery has recently come out with a cover for the iPhone 3G and iPhone 3Gs. The cover itself is a fairly standard hardened rubber sort of affair, with a couple of notable exceptions. For one it has a battery built into the case, which can be charged from an external USB source, it also addresses the lack of a flash on the iPhone.

Americans use around 2 Billion disposable batteries a year, one of those numbers that’s big enough for most of us to have no actual concept of it, but it’s a lot. If you find yourself being a larger than normal part of this statistic the obvious solution would be to use a rechargeable battery.

One of the more popular items for the holiday season this year will no doubt be the smartphone. Probably the most well known example of this is the iPhone 3G, the Motorola Droid is a fairly recent comer to the scene and has some very nice features