What is one of the coolest and simplest products to give a road warrior this holiday season? It is a device that could power up a cell phone or blackberry from any airplane seat without the need for a power jack. Is such a thing possible you may ask? You must be wondering if I lost my mind. I haven’t. This nifty gadget converts the audio stream going to each seat in an airplane to minute amounts of electricity you can use to power a device via a USB port. Very very smart idea.