I'd support a backport of X.org, but I guess it's a moot point as it looks like there are no ppc builds in the backport releases...
Geez. 6 mos old packages and you guys are moaning! }:)
I just switched over to Ubuntu from Yellowdog Linux 3.0.1 for more up-to-date packages that I didn't have to track down the source, the source of dependancies(and what those were. Alot of projects aren't very clear on dependencies.), etc. build test install for recent versions.
Basically everything from YDL 3 was ~2yrs old except for a very few items like firefox, thundrbird, and a few others plus security updates. And really, only the security updates were official builds, the others were done by people like me who wanted fresh packages and had to build it on their own. The final straw for me was the incredibly bloated YDL4 size(from 1 disk YDL2, 2 disks YDL3, 4! disks YDL4, I still remember early distros that fit on <20 floppies!, diku linux + SLD + others) plus the lack of updated packages, meaning that many times even if I did find more recent sources they start to tend to all require HUGE updates(e.g. GNOME 2.6+, KDE/Qt > 3.2, etc.) which are not fun over dialup...
(Also YDL just plain missed quite a few useful utilities and applications altogether, and I had been considering installing Debian when Ubuntu came along...)