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

Blue Spark Technologies produce printed carbon-zinc batteries, which are small, environmentally friendly and most importantly cheap enough to produce to make them viable. These batteries are also incredibly thin; their standard battery is 750 microns thick (that’s 0.75 of a mm), while their Ultra-Thin series of batteries can go as slim as 500 microns.

The power of the mat that can charges hundreds of electronic devices included iPhone, iPod, iTouch, Blackberry, Digital Cameras and so one. Powermat brings wireless charging to reality.