Google, two days before the announcement of the iPad by Apple, put mock-ups of a new product that would ride on the hype of the device--a browser-based Chrome OS for tablet computers.
Chrome OS was designed primarily for netbooks. Netbooks will not be the extent of it's use however--it will work with an array of web enabled devices--each with very different input methods, available screen space, and processing power.
Stephen Shankland writing for "DeepTech" at CNET believes that Chrome OS may be a better sell for tablet computers than netbooks, because netbooks are often used as a primary computer which may make a browser-based OS a less appealing option.