After a distribution upgrade from Natty 11.04 to Oneiric 11.10(currently on development branch), the first things I do is to install the gnome-shell which is being the best fix from 11.04 version. Yes! It is a Gnome 3 shell which able to work side by side with Unity(the default desktop for Ubuntu).
The most important, bad and pain in the ass things i found out that Gnome 3 on Ubuntu 11.10 not working is the Run Shorcut Keyboard Key. By default, the Alt+F2 will bring this run window up, but somehow in 11.10, it did not do anything.
