I already blogged about this some time ago but since some people keep asking, I’d thought about giving it more publicity.
So, in case you don’t know, next Ubuntu version won’t ship GNOME 3, but we have been working in the last few months on providing GNOME 3 packages for anyone interested in running GNOME 3 on Ubuntu. The packages are in the GNOME 3 PPA, and although it still doesn’t include everything GNOME 3ish, it includes the stuff that has changed the most, like the new control center, gnome-shell and other core desktop things and some applications. Thanks to Allan Day, here are some instructions on how to use a PPA.
It still misses lots of apps and some core desktop things, like gnome-session, but should be ready for daily usage (using it myself on my systems).
You can report any problem you find on the PPA via the GNOME 3 team mailing list or directly to me, as you like.