BBC news is reporting that Google are planning on releasing an open source OS (which, i'm sure will come as a surprise to nobody). The article is somewhat vague but the wording implies that the OS will be web based. From TFA:
"We're designing the OS to be fast and lightweight, to start up and get you onto the web in a few seconds," said the blog post written by Sundar Pichai, vice president of product management, and Google's engineering director Linus Upson. Both men said that "the operating systems that browsers run on were designed in an era where there was no web" and that this OS is "our attempt to re-think what operating systems should be". To that end, the search giant said the new OS would go back to basics. "We are completely redesigning the underlying security architecture of the OS so that users don't have to deal with viruses, malware and security updates."