Hi Thierry,
Although eXposure is primarily capture software as you say, it makes sense that the manufacturer of a particular back should be able to extract the most from the files created by their backs. This certainly seems the case with the Phase backs and Capture One. I also believe that for sake of ease and speeding up workflow it is desirable to use the minimum number of software applications to achieve a file that can be delivered to the client. If we have to use eXposure to capture, then Lightroom for subtle color tweaks, then Photoshop to sharpen and do noise removal (with plugins such as noise ninja) then the whole process becomes tedious and time consuming. So for these reasons, I believe that apart from the essentials of being able to capture without crashing, and flag, name, save and navigate around the images, and alter color temp, saturation, contrast and so on, it would be nice to see some of the more advanced features needed for good post processing. I know you have already indicated the various plug ins planned for eXposure, such as moire removal, noise reduction and so on, but then some cream on the top would be nice, like per channel saturation, recovery slider, creative vignetting, the good old 'color alchemist' that was in Captureshop and whatever other brilliant innovations the Sinar/Jenoptik software engineers can write into the software to make it easier to us photographers to produce great(er) pictures. I'm sure some of these things will come eventually, but I just wanted to register my desire to have these things to raise eXposure from the status of merely a capture program to a more powerful professional tool.
Ben