I've installed 12.1 Gnome 3.1.4 on two different hardware, one workstation based on Asus M4A89 GTD w/AMD3/890GX graphic and one mobile workstation hp8710w based on Intel T9500/nVidia Quadro FX 3600M respectively. Both machines have been successful running several openSUSE/SLED generations, up to the latest 11.4 Tumbleweed Kernel 220.127.116.11-43 desktop and Gnome 2.32.1 included.
One thing is 'nomodeset' that had to be set to boot 12.1 desktop on Asus, and even to be able to run the installation program on hp8710w.
The 'real issue' is that Gnome 3 (Clutter) wont't start on any machine, but escapes to fallback mode, which of course isn't of much interest.
As this has happened for me now on two quite different hardware configurations, I'm interested to hear if someone else has tried and succeeded to get this Gnome 3/Clutter version running on 12.1?
Rgds, Terje J. Hanssen