The forum member who posted the image and details, has said that he was contacted to be part of a survey for a Google phone designed by Samsung.
The phone looks seems to have a large screen that swivels out and has a keyboard under it. The top of the phone has what appears to be four buttons and a round circle.
The forum poster forgot to document the specification but did note that it was “3g/wifi etc, had a camera 2megapixal.” The suggested pricing for the phone, he said, was “£50 with a new contract or £199 pre paid.”
Real or rumor? No idea, of course.