Backports are now at 4.11
I haven't tested on any Ultimate Edition releases, waiting for 12.04.3 which is supposed to be avaialable on the 22nd. I also have not checked Siduction "SLACKER!!!"
As far as my slight time on 4.11. It is realllllly responsive. Still my machine could blow up any second, who knows. I do want to revisit 3.5.1 at some point, it is generally the same deal as 3.5..remove Unity, Cinnamon, Yarrsr, except for the Mate environment kind of throws me off a little. I have issues with Mate on Ultimate Edition alongside latest KDE on 3.5 and I have no idea why. If I can get it straightened out, I could probably just rip out Gnome all together since Gnome 3 doesn't work anyways. Alternatively, Mate and latest KDE do work fine on 3.4 lite.....so far. It may just be easier to add xfce and lxde to it..hmmm