We are stuck with Maemo 5 on the N900. And that is a good thing! Lots of useful apps, a helpful community and a polished OS. Sure, there's room for improvement, and lots of open bugs that should be fixed, but that's another issue (which will ideally be solved by open sourcing closed components with bugs that Nokia isn't interested in fixing anymore and by the Community SSU). This one is about Qt.
It would make sense to have a single metapackage (community-service-pack, or something to that effect) that we would expect everyone to have installed. Applications that need it could have it as a dependency, instead of enumerating every unbreak-my-platform patch ever developed.