Here's the potential irony of the full frame sensors as I see it (you Canon guys ignore this):
With the advent of the 12-24 DX lens, the cropped sensor cameras may well become preferred for wide angle due to the cost and size of the lens and associated ports, while the full frame sensor cameras may be preferred for macro due to the better utilization of the various macro lenses (remember you can manually crop a full frame image to achieve equivalent results).
I could see someone using their 14n-class camera for macro, then switching to their S2 for wide angle. Wonder if we'll see any good macro lenses in the DX class?