Well, to change the subject a bit, the skin for my wife's case arrived today. It looks like the back should fit with no problem, but the front might require a little trimming. The cut out for the screen is just a little too small as well as the cutout for the front camera, sensors, and ear piece.
But the really odd thing is that the home button appears to be in a different spot on the Fre and the Nuud cases. I would have assumed that they were both positioned directly above the actual home button on the phone, but that doesn't seem to be the case. It looks like the home button on the Nuud is maybe a millimeter lower than the home button on the Fre.
It seems to be pretty well centered in the bottom part of the bezel on the Nuud case, so maybe they took a little poetic license and thought it would look better that way, or perhaps they had to move it a little to create room for the seal to keep it waterproof. In either case, trimming the skin to work with the home button might be a bit more interesting.
Once my wife gets home from work tonight with her phone I'll see what I can do.