The likes of you and I can't buy Google Glass yet. It's available only to the select developers and opinion-makers who have been permitted to spring $1,500 for the privilege of having the first one on the block. But I've seen a few around my San Francisco neighborhood among the young techies who commute down to the Google and Facebook campuses in WiFi-equipped shuttle buses or who pedal downtown to Zynga and Twitter on their fixies.
You've probably seen pictures of one of these.