Speculation is rife that Google is on the verge of launching its own version of a tablet PC in direct competition to Apple's iPad.

The rumours of the new device have been fuelled by a Web post from Google engineer Glen Murphy showing Chrome OS running on a five-to-10-inch tablet mock-up.
The IT rumour mill suggests that Google has been working on a tablet prototype with HTC which worked with the search giant on its mobile phone, the Nexus One.