In Pictures: Coolest, hottest and strangest gadget...
Touch charging is a major theme at this year's Computex show. Winstream, a Taiwanese manufacturer of power supplies, demonstrated its new touch charging chip: Two iPhones (shown) with external battery packs containing the chips were pressed together back-to-back. One phone charged the other, then the settings in the packs were changed, and power flowed in the opposite direction. The $4 chips, due in September, will actually be implanted in mobile devices.
In Pictures: Coolest, hottest and strangest gadgets from Taiwan's Computex 2012 show