"If that’s your strategy, you probably need to be aware that, at least in the current not-a-beta release, upgrades from XP to Win7 are blocked. (I don’t know whether this restriction will be in the final edition as well, but I bet it is.) You can do a clean install only, with all your old Windows files going to a Windows.old directory and none of your files and settings transferred (you can, however, use Windows Easy Transfer to save settings first and restore them later).
So the compatibility issues you’re ignoring right now aren’t going to go away. If you have apps or hardware drivers that only work on XP and aren’t compatible with Vista, you’re going to have those same issues with Windows 7, which isn’t going to magically fix anything."
Remember - "A day without laughter is a day wasted."
May the wind sing to you and the sun rise in your heart...