Here's an interesting device that is supposed to stretch and exercise your hands if you've used your BlackBerry too much. The Xtensor is supposed to help people recover from BlackBerry thumb or other hand injuries. Its purpose is to strengthen and rehabilitate your hand.

Does it work? We have no idea and apparently neither does Laptop Magazine. They're giving it a full review though.

To see the device in action check the source link below to see a short video of the Xtensor in action.