GNOME has finally redesigned their Quit... menu. You can see from the screenshot that now, it looks very similar to Mac OS Leopard's. Nevertheless, copying Leopard is better than copying XP. One step away from Windows is one further step away from sudden failures.
But back on topic. I have got to say, this looks beautiful. The Quit... menu now looks like a plain window that functions like everything other application and better integrates with.....well, everything. Perhaps maybe soon, they'd switch that gksudo that dims your whole screen and you can't do anything else but type in your password or press "Cancel" with the new PolicyKit's "Unlock." button.
There is a bug though, if you click Shut Down, you get taken to your login menu, and you have to shutdown from there. "Investigation of this issue is ongoing" and it's on the list of bugs to be fixed for Alpha 5.
Another neat thing I've been informed of is when you try to shut down, log off, etc. with (an) application(s) open, a notification will pop up stating you must close all applications first. I have no opinion over this. And no screenshot.
UPDATE: A very nice user, Swatinem, has given me a picture of the comparisons between Hardy and Intrepid of the "quit menu redesign." Here it is: (Thanks, Swatinem!)
UPDATE 2: It seems with the latest version of GNOME, this was updated again. Users complained that, in the previous menu, hover-over will bring up a help sentence of each option, but in the new menu, no help was available for any of the options. Not to worry. It has been re-layouted, better mimicking an actual window and having a Help button at the bottom-left of it just like every other application!