Well I've had a wee play with Ubuntu 11.10 now. It's definitely a massive improvement as far as Unity is concerned, that's for sure. There's now icons at the bottom of the dash that take you to Applications/System/Places etc (named differently, but the result is the same), and you now have a Gnome 3 style applications list in the dash which was sorely missed in 11.04. The whole thing generally looks attractive, really plush and distinctively "Ubuntu".
I still don't find it as nice to use as Gnome 3 though. All expected mouse actions produce consistent results on Gnome 3. It really is a joy to use. Fast and simple. But with Unity there's pauses while the bar appears (or doesn't), you can't minimise an application from the Unity bar by clicking the icon again. Lots of little things like that. With Gnome 3, it just responds as it should once you know how it works (which isn't hard). You still get the feeling too that Unity is a little fussy and demanding. I'm not sure that hiding the window buttons is a great move either, but I suppose you'd get used to it.
It is, however, very nice and functional if you are prepared to spend a little time with it. I'm just still not convinced it's a Gnome 3 beater personally, though obviously I've only had a limited time with it, compared to 5/6 months of using Gnome 3.
I did get a crash from gnome-settings-daemon, which is something that caused me no end of trouble on the past two releases, and it was disappointing to see it again (I've not had it once on openSUSE Gnome 3). But there's time yet to fix things, and I can still be turned back to Ubuntu if it's good enough at release.