First release 4.0 was market as for devs only. It's really not KDE fault that Fedora and few others decided to ship something that was intented just for Qt/KDE devs.gnome 3 adds a few major things. they dont want a total overhaul like kde4, which might i remind you sucked ass for about the first year as they crunched bugs.
The second release 4.1 was marked as "early adopters" which IMHO also was a clear message to distros to not upgrade.
... and that says a person that on the first page here posted a highly customized Gnome desktop pic instead of default upstream Gnome look and feel ... Are you really that ashamed of Gnome default look ? The fact is both Windows7 and KDE4 defaults look a LOT better then default Gnome ..These are the same people that say windows 7 looks "ugly" or "disgusting", when a joe on the street will tell you default kde4 looks far worse.