Google is starting to expand production of its experimental wearable technology, Glass, releasing tens of thousands more units in the coming months.
According to sources familiar with Google's plans, it is planning a "substantial" increase of Glass's manufacturing volumes in the run-up to Christmas. Until now, little more than 10,000 of the Glass "Explorer Edition" products have been distributed to competition winners, developers and other early adopters.
Google has said that it will not put Glass on sale to the general public until next year but, in a manner that one source likened to its gradual rollout of Gmail, existing owners will be able to invite a limited number of friends to buy the device.
The futuristic gadget shows updates from a tethered smartphone on a small screen just above the wearer's eye and can be used to take photographs and videos. It is controlled by voice commands, beginning with the phrase "OK Glass".
Google has championed a variety of applications for the device, from filming active sports and cookery videos to teaching aids and even a fashion accessory in a recent issue of Vogue magazine. Recent updates have brought new functions such as navigation directions, and developers from social networks to media organisations have created apps for Glass's small screen.
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