That said, currently two problems that would stop me installing Fedora for very non-technical users:
- Auto update is not reliable/graphical enough, or never has been for me. Maybe it's fixed in FC4. - Auto update breaks nvidia drivers every few weeks
well the moment you use the (probably illegal) nvidia binary drivers you gave up all advantages of open source already. Especially on the security front, binary drivers have a really bad reputation and history there.
-denis