Sony Cyber-shot DSC-RX1 – compact camera with full-frame sensor

Sony has announced the RX1, a compact camera featuring a full-frame sensor:

• Same 24,3 MP full-frame sensor as in SLT-A99
• Carl Zeiss Sonnar T*  35mm f2 lens
• ISO 100-25,600
• Dedicatd aperture ring
• User customizable buttons

Sounds like a very serious camera for enthusiasts with deep pockets at a list price of $2800.