The prototypes are also being tested 'in the wild' by Google co-founder Sergei Brin, who was pictured weariing a pair of the glasses.
The wraparound glasses feature a miniature display that sits above one eye, allowing users to surf the internet, make video calls, listen to music and update the diary without lifting a finger.
The screen is controlled by voice and by tilting your head, so one catch may be a few funny looks in the street.
A prototype is being tweaked and tested in public by the company’s employees before it goes on sale.
The technology is known as ‘wearable computing’ and is expected to launch a new generation of gadgets which display a layer of information over everything the wearer sees – bringing together the search engine, GPS tracking, a phone and a camera. Full story...