Ever heard of NUU before? No? Well, we’re pleased to inform you that they are a manufacturer of mobile device accessories, and most recently picked up the nod from the FCC for their MiniKey Bluetooth keyboard for the iPhone 4. This is pretty much a self-explanatory accessory, as it will slip over the iPhone 4 just like a case, connecting to it via Bluetooth with but a simple push of a button. Since the case is self-powered, you don’t have to worry about it draining more battery power from your phone any more. Capable of running for up to 72 hours on standby mode, it isn’t too hot when used continuously as it runs out of juice in just 2 hours. No idea on pricing or availability, but we would have preferred to see it last a whole lot longer instead of just 2 hours – could it be a typo on the source’s part?