I’ve gotten both of the major desktop environments running under Apple’s X11, so I’ll be looking at them from a UI standpoint periodically. My brother was recently gifted with many spare parts (including an extra 512MB DIMM which now resides in my iMac – thanks, Jarod), so a Linux box might be in my not too distant future.

I know that both GNOME 2.6 and KDE 3.2 are not too far away, so it really would be best to wait until then to make any UI comments, which otherwise run the risk of being obsolesced.