You can now officially buy Glass for yourself! Google has quietly made its featured wearable available to U.S. citizens, for what seems to be an indefinite period. However, TechCrunch has noted the wording the company used when announcing the launch on the website:
"We're still in the Explorer Program while we continue to improve our hardware and software, but starting today anyone in the U.S. can buy the Glass Explorer Edition, as long as we have it on hand."
The Explorer Program is still ongoing, therefore making this a test project - Google even refers to it as an "open beta" on the main Glass page. And the "as long as we have it on hand" seems to imply that sales can stop at any given point. If Google decides Glass isn't selling enough, then they can easily stop the public sale at any time.
However, bearing in mind that before this you could only get into the program if either a) a friend gave you an invite, b) Google invited you, or c) Google happened to have Glass on sale for just one day, this is a step forward. So if you're keen to become an Explorer and have a hefty $1,500 to spare, you can get a hold of Glass today.