From the experience of some of my friends, you upgrade to Snow Leopard on your real Mac at your own peril. The comment was, “That’s what I get for upgrading to an x.0 release.”
Upgrading my real MAC was easy. Although, it took almost an hour, the upgrade went as expected. I have encountered a couple minor problems, but otherwise it is OK.
Your friends running clones? I have 4 Macs all upgraded last Friday, none with a hiccup.
Huh?
I upgraded, didn’t even “backup” my stuff, and things are running flawlessly. Wonder why your “friends” are having so much trouble?