Have you ever heard of IDAPT's multi-device charger? IDAPT I4 is an innovative charging solution that can charge up to 4 mobile devices simultaneously and is compatible with over 4,500 mobile electronic devices including the iPhone, iPad, Blackberry, Nintendo DS, PSP, GPS systems, digital cameras, and Bluetooth products.
As much as we've talked about portable chargers, we've yet to come across one that I would call affordable (excluding the various deals we've found, of course). Satechi just changed all that, though; it released a 10k mAh power pack for $50. Fifty dollars! Considering I've reviewed portable chargers with half that capacity for nearly double the cost, I woudl say this one is a good deal right out of the gate.