A lot of updates popped up in Ubuntu in the past couple days. Looks like a new version of xorg is out. I must admit I'm a bit nervous actually doing this upgrade. There is no etc-update, though there is something similar that asks if I want to overwrite config files with the ones from the package I'm installing. But I'm still not entirely sure how it works. So I don't know what's going to happen to my xorg.conf. This will be my first real test of Ubuntu, I think.
It seems Ubuntu's subversion package is older than what I was running in Gentoo before I switched, because I hit some problems working with some old scripts I'd checked out of a repository while using Gentoo. It worked itself out though. Aside from that and a few KDE bugs, having retained my /home folder from Gentoo and made no changes to it, Ubuntu has been a flawless drop-in replacement. All my old config files still work. I'm sure the same could be said of most distros; it's more a strength of Linux than a strength of Ubuntu.