I took most of the weekend off, although took a look at an upgrade bug on e16. Turns out Tolimar's got it handled, right? :)
Tonight I put together a tentative patch for bug #557580 on aptitude to make it respect configuration under /etc/apt/preferences.d/ - aptitude is written in C++, and I have had some recent exposure to that language at work. Unfortunately, it means aptitude takes most of an hour to build on my desktop.
Since aptitude is an important package, I'm not yet entirely confident about my patch, and it's already half eleven, I think the NMU can wait a few evenings.