I just gave Gnome 3.0 a very short spin with VirtualBox and a Live CD based on openSUSe 11.4.
Very short. 5 minutes, tops.
I don’t like it.
I can understand the general idea of not showing too many confusing things to the users at once.
I can not understand why the gnome team seems to have decided that any application at all is already confusing.
After starting Gnome 3.0 you look at a practically empty desktop. I really do not like having to search for my apps, files, and folders.