I've read quite a few of the various Maemo development, SDK, Qt and other pages pertaining to developing for N900, but the information is scattered everywhere, and some of the docs are somewhat ambiguous - e.g. should I be installing e.g. QtCreator on my PC or inside my (Debian-based) Maemo development virtual machine? For a beginner, what will be least confusing?

Is there any advantage to opting for Qt5 over Qt4 for a new project?

What about SCM? While one can certainly develop without it, it's pretty crucial in my experience to be able to step back through changes sometimes. I've used Subversion in the past, now Git is popular - what's a good choice for noobs who have no experience or preference in this area?

Right now I'm at the point where I want to use QtCreator to develop a simple Maemo5 Qt app, but the most recent QtCreator version (3.x) doesn't seem to have a Maemo target. Is there another version that has that by default? Or do I need to install some additional module(s) for Maemo targets?

I've looked over the documentation and keep running into hurdles. Any brain dumps would be appreciated - maybe I can massage them into an up to date overview of preparing a virtual machine for Scratchbox and Qt development.