According to this article in Slashgear, while Google's Project Glass looks like something from the future, Will Powell, an AR developer in Oxford, built his own version using readily available equipment.
The unit is a combination of Vuzix glasses, HD webcams and a mic headset with with a custom-coded Adobe Air application. Powell explains the speech recognition element, "It harnesses the Dragon NaturallySpeaking engine so can perform full audio recognition. It can create appointments (only within app) using the full speech recognition. Also the app can take photos upload them and share them."
As the kit appears to already exist and the data is readily available (Powell pulls his weather report from Yahoo! for the clip) the magic of Google's Glass suddenly looks to be less than magic but in fact readily available to those who have the know how.
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