Sony SR-R1 Memory Recorder
The SR-R1 will record at 220Mbps and 440Mbps to solid state memory cards. The unit will support Single Link 4:2:2, two HD-SDI outputs for 4:2:2 1080/60p, 3G and Dual Link RGB at 440Mbps.
Simultaneous recording makes it possible to record two cameras at once for 3D productions
Interestingly, when Sony reps were asked why the PMW-F3 did not record at 50Mbps (at the highest quality to internal cards it records 35 Mbps in 4:2:0 8-bit XDCAM EX format) Sony's response was that it would have added too much to the cost, but that with the SR-R1 (or other similar output options) those who need that sort of quality can get what they need.
While Sony hasn't officially released information about the SR-R1, it is covered in a 12-page special report from Film And Digital Times on the PMW-F3, and the Sony reps clearly thought that the pricing of the SR-R1 would be competitive.
FilmAndDigitalTimes: Sony F3 Special Report
Note: several broadcasting organizations such as the BBC and PBS have official minimum standards for video quality, and for digital recording cameras have so far been inclined to only approve cameras that record at 50Mbps or above.
BBC: Commissioning: Producing in High-Definition