This concept from John Mielke would implant a special device under your skin which communicates via Bluetooth to your gadgets. Using a special smart-ink pixel painted on to your skin, the device projects a digital tattoo of a phone on your skin which you can interact with like a touchscreen. There’s even the potential to transmit 3G video conversations on your arm.

The device itself is powered by your own blood, converting oxygen and glucose into energy to pump up its fuel cell, so this concept isn’t one which will be popular with the bloodless crowd such as zombies, trees, or Rush Limbaugh (burn!). — Andrew Dobrow

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