If this is true, Sony RX1 is going to be a game changer for compact camera (or Micro Four-third systems). With a small body, it is touted to have a full frame sensor in it. But nothing is confirmed at this moment.
Here is a picture from the top view.
From this picture, you can see wording like 35mm Full Frame CMOS Image Sensor. It has a 35mm Carl Zeiss Lens with F2.0 Aperture. From Photoprice.ca, it says that the RX1 will carry a retail price of US$2,799.