This interesting video was discovered a few hours ago by François Beaufort. He shared it on Google+. The video was killed by YouTube just a few minutes later. But by then, the fire had started. It is currently the hottest rumored product on the web! I managed to find a copy of the video. Though it is very likely, it would be killed by Google as well.
It is not clear if this video was created for Google. It shows a Chromebook model with a very high resolution display with touchscreen support.
It would be very interesting if Google would launch such a model considering the existing Chromebooks are mostly focused on the budget segment market.