Hmm, interesting subject to think on. I hope that the next version of vue that e-on really concentrates on better clouds and atmospherics. True this is the first time such a nice system was introduced but it should only get better from here on out. It seems to me that vue needs a voxel-based volumetric system like what pyrocluster has. Pyrocluster had some very nice high details on it's smoke, cloud and fire effects.