Google VP of product management Sundar Pichai spilled the beans earlier today on Twitter. "Sorry we have shipped all units for now," Pichai said.
The Google exec also reconfirmed that the first Chrome OS devices will go on sale this summer. Acer and Samsung were among the first companies to commit to shipping Chrome OS devices back in December.
First announced in 2009, Chrome OS is an operating system designed for the web. It boots up in seconds and can update itself, but most importantly, it only runs web apps. It is Google's attempt to get people to ditch their desktops and use the web even more.
Since its debut in 2009, however, tablet devices like the Xoom and the iPad 2 have dominated the market and changed the computing landscape. Netbook sales are plummeting while tablet sales are skyrocketing.
So Google is entering the next phase of the Chrome OS development cycle -- but it's unclear whether there's a market for a web-based OS in an iPad world.