Just got this note from Phase One:

We are pleased to share with you the release of Capture One 5.1.1 on Thursday, March 25th 2010.
 

The release contains the following enhancements for Leaf backs:

• Tethered and RAW file support for Leaf Aptus-II 8 (40 MP) camera backs
• Improved default film curves for Leaf backs.
  
• Support of develop-curves from Leaf MOS files.
  
• White balance can now be set when shooting tethered with Leaf backs.
  
• Orientation can now be set when shooting tethered with Leaf backs.
  
• Base characteristics gains presets.
  
• A number of bug fixes.
  

Capture One 5/PRO/DB will be available for download and purchase from the Phase One web site on Thursday.

Capture One 5 Pro is here, on the Phase One site.