Read it this morning, well they have been talking about it for quite a while now but even though it is an interesting concept I don't think it'll sell. You really can't do anything u don't already do with ur smartphone and for this to work many things have to be worked out first: Battery life, better speech recognition software, has to work with glasses and sun glasses, it has to be light enough not to feel uncomfortable and text and images poping up in front of ur eyeball won't look nearly as neat as what was showed on this concept video.
This kind of reminds me of Microsoft Courier, that perfect futuristic tablet that never left the lab.
-sorry for errors. Typed on iphone