The gadget without buttons
If you're sick of carrying your phone around with you, scientists could have come up with a solution: a phone that you dial on your arm!
It sounds crazy but the experts at Skinput have invented a gadget that projects your phone's numbers onto your skin.
To make a call you just dial the numbers where they appear on your arm - and the 'phone' will call your friends!
The device is still being developed and won't be in the shops for a while.
At the moment you have to carry a projector with you for the device to work.
The projector is strapped to your arm, and projects a keypad on your skin.
When you touch a key, the movement is picked up by a sensor in the projector which sends a message to the gadget telling it what to do.