This is the latest video appeared on BBC's website with a new prototype phone built for Google by "one of it's partners". In the video Google's Andy Rubin shows off a 3G touchscreen device running at 300 MHz. Video after jump.
Andy shows of the normal stuff like WebKit and Quake, but it also shows a new application that is a mobile version of their StreetView maps program. He also references a music player, and other applications.