Sorry for the stupid question, but I can't find a definitive answer after reading a bunch of threads for the last hour.

What's the proper apt update procedure these days? I only care about the repository.maemo.org repos. Should I switch to the skeiron mirror, or something else?

If I comment out the nokia.com repos from /etc/apt/sources.list.id/hildon-application-manager.list and then do apt-get update & apt-get upgrade, then I'm just prompted to reinstall apt, which overwrites my changes to that file.