Upload & Sell: On
Pure speculation on my part, but I imagine that they're having trouble with the color filter array- most RAW converter houses, including Adobe, find it pretty challenging to deal with.
As in, they don't know how- though I do wish they'd hurry up, as I'd like to see how Fuji is doing compared to their results from other systems!
Demosaic for X Trans CFAs has come a long way in the last two years, but it is nowhere near the maturity of normal bayer CFA sensors. All you have to do is see the wildly different output results from say, ACR, Aperture, and Photo Ninja (or Iridient on OS X). Each has strengths and weaknesses for different types of images-- far more so than you see taking a 5D2 RAW file through these various programs.
I'd also be interested in seeing DXO results for Fuji X cameras, but it would be mostly academic anyway. I can get a good sense of what my X-E1 is capable of by shooting it alongside my 5D2. It excels in some areas-- besting the 5D2-- and falls behind in others. Given the silly cheap price, good optics, and size... it's outstanding for what it is. It still has some ways to go in other areas though!