The updated Google Glass comes with an earbud instead of bone conductor headphones. / Google

Fire sale to any and all US adults is the biggest test of the public's reception to date

Google Glass is going on general sale in the US for one day only in what could be the biggest test to date of public desire for the wearable computer.

Following the publication of a leaked document by The Verge, Google has confirmed in a blog post that they will be selling Glass online to any adult in the US on April 15th from 6am PDT.

Google will also throw in a free sunglass shade or prescription glasses frame for the $1,500 plus tax pricetag.

Google also apologised that Glass would not be going elsewhere in the world: “To everyone outside the US... we know. Sorry :( We’re just not ready yet to bring Glass to other countries.”

Up until now Glass has only been available through the Explorer program, which currently has around 10,000 sign-ups.

“Our Explorers are moms, bakers, surgeons, rockers, and each new Explorer has brought a new perspective that is making Glass better,” says Google.

“But every day we get requests from those of you who haven’t found a way into the program yet, and we want your feedback too. So in typical Explorer Program fashion, we’re trying something new.”

The widening of the Explorer program could be a significant test of Glass in the real-world, as less new users introduce the device outside of its home territory around Los Angeles. Problems with the device have ranged from speeding tickets for 'distracted driving' to personal attacks seemingly motivated by a fear of being recorded.

For those in the US who are interested in getting their hands on the device, Google has its own set of ‘do’s and don’ts’ on how to behave. The key piece of advice? Don’t be a glasshole