Anyone remember the Sony Twirl N' Take camera prototype from a few years back? Here's its cellphone little brother, which can be spun around your finger, charging the battery while on the move.
It's just a concept for now, thanks to Russian designer Mikhail Stawsky, who has also created a crank-ended handset. Twist the end until you've got enough juice to place a call on the glossy touchscreen phone, and develop a new OCD habit whilst at it. [Mikhail Stawsky via Yanko Design]