Something that’s been bugging me lately is that CRAN doesn’t seem to have recent (ie v2.4+) versions of R ubuntu packages for 64 bit architectures. So I finally bit the bullet and added the debian/ stable/ source path to my sources.list, and voila! Instant goodness. You’re not really supposed to cross-contaminate like this, but I haven’t even broken anything – yet.
Trivial, but annoying.