BLU is making a smartphone with a similar feature, the BLU Studio Energy. It's a large Android phone with a 5,000 mAh battery and it's designed to be used as a

BLU is making a smartphone with a similar feature, the BLU Studio Energy. It's a large Android phone with a 5,000 mAh battery and it's designed to be used as a power bank for other phones. http://www.bluproducts.com/index.php/studio-energy http://www.bluproducts.com/index.php/studio-energy I've used a BLU phone before (the recently released Win HD LTE) and I wasn't impressed with the build quality; my phone suffered severe touch lag and an inexplicable lack of multi-touch capability, to the point that typing was impossible. It also suffered frequent stuttering and crashes that even my old Lumia 521 didn't have. I promptly returned it and went back to using Android for the time being, and now I'd hesitate to get another BLU. But the Energy does look like a nice concept.