The new AMD Catalyst 11.9 for Linux driver should fix up some of the GNOME 3.x issues that have long been experienced for months. But don't expect a perfect experience yet with this binary driver and the GNOME 3.0/3.2 desktop. Aside from that, there isn't much to see in terms of improvements. Sadly, for those using KDE 4.x, there are reported regressions within this new AMD Linux driver build.
The driver (with download links) is already being discussed at length in this Phoronix Forums thread. See the thread for the full scoop.