Google Glass: Is it ready to set the trend?
15 May 2013 Last updated at 22:41 BST
The next big step in mobile computing, according to the internet giant Google, is a computer integrated into a pair of spectacle frames.
The new Google Glass product allows the wearer to take pictures, send messages and search the web on the move, combining the visible information with a view of the world around them.
Some campaign groups are wary of the implications that the Glass and similar devices will have on privacy.
Rory Cellan-Jones reports.