Tech review: This week's headlines
US programmer Kevin Bates has created a business card fitted with an Arduino computer capable of playing a number of games including Tetris.
Further details have emerged into the circumstances that led to one of the largest Bitcoin exchanges to file for bankruptcy. In a statement MtGox said there was a "high probability" the coins had been stolen through a bug in its systems.
And engineers in Italy have developed a machine called the "Body Extender" which allows the user to lift 50kg (7st 12lb) in each hand.
BBC Click's Marc Cieslak has details of these and other technology stories of the week.
- From the section Technology