Username or EmailPassword
What are they waiting for, then? Except for usability, they're still playing catch-up to KDE 3.5, and 4.0 is coming. There are external projects offering things like compiz and beagle, but they still aren't part of gnome. Well, tracker will be, for 2.20, that's a good thing. But will that be enough? I don't see them adding grammar & style checking, or any 'next generation desktop' stuff.
I loved the Lisa screenshots some time ago, they showed how the desktop indeed hasn't changed since 1985... And I really miss the ambition at Gnome. I won't use it, of course, big KDE fan, but KDE will need some real competition on the free desktop, and as far as I can see, Gnome won't be it... Maybe Enlightenment, but they've been in alpha for ages.
It probably won't matter how good gnome is or not, the big distro's are so entrenched, they'll deliver it as their desktop, even though they won't ever get ahead on MS that way. But it's limiting for the average Linux user, imho.