Google has delayed the launch of its much anticipated laptop, powered by its Chrome operating system, until 2011.
Instead, Google announced a pilot programme aimed at people who "live on the web".
Chrome OS is Google's boldest bid yet to challenge Microsoft's market dominance with Windows software.
Google has already gone after Microsoft's Office software with its Google Docs product.
Chrome marks a departure from traditional operating systems, such as Mac OSX and Windows, by targeting users who spend most of their time on the web.
"We think cloud computing will define computing as we know it," said Eric Schmidt, Google's chief executive officer.
"Finally there is a viable third choice for an operating system."
Google's Sundar Pichai said the pilot scheme is aimed at early adopters, developers and users who are used to using beta software.
They will be given an unbranded black notebook, called the Cr-48.
Mr Pichai said there would be no devices on sale until next year simply because the software was not ready for prime time, due to a number of bugs and unfinished features.
"This is a profound shift," said Mr Pichai, claiming that the operating system is Google's attempt to "re-think the personal experience for the modern web".
"Chrome is nothing but the web," he added.
Machines for the pilot scheme will start shipping soon.
Consumer devices from Acer and Samsung are due on the market in 2011. No pricing details were given.