Turn your thumbnail into a trackpad

THUMBS UP: The NailO attaches to your thumbnail and turns it into a computer track pad.

Researchers at the MIT Media Lab are developing a tiny wearable that can be attached to a wearer's fingernail to remotely control a host of devices. 

Called the NailO, it's roughly the size of a commercialised nail-art sticker yet offers the same levels of functionality as a notebook computer's trackpad – simply move an index finger over its surface in order to remotely control a smartphone, tablet or computer.