The web is awash with gossip and rumour about the imminent arrival of a Google-branded phone.

The search firm is widely expected to unveil the Nexus One phone at a press conference scheduled for 5 January at its California HQ.

It is believed Google will sell the gadget directly to customers and that it will also be available, subsidised, from mobile operators.

Google has remained tight-lipped about what will be unveiled at the event.