Logitech uses their proprietary RF protocol to pair their keyboard to the Revue. I'm sure Sony does their own thing too. So no, you can't do what you are asking.
Yep, neither the Keyboard Controller (K700/T700) from the Logitech Revue nor the Remote Commander (NSG-MR1) from the Sony Internet TVs will pair with the opposing devices. You can however use a Unify receiver to pair the Logitech Keyboard Controller or Mini Controller with a Sony Google TV device.
