[Terpfen]

As a primary OS... for one, it's impossible to apply updates, and you can't quite burn an updated CD when you're using the Live CD to begin with. You're also stuck with the inability to install anything, from programs to program updates.

The LiveCD is a nice concept, but as a primary OS... nah.

[Tarpon]

Well you are right. But as I said you use it for only one purpose, running in a protected mode where you want to do just a couple of things with high security, like online banking, stock trading, buying on line. You don't need the latest updates, just functional. My trusty LiveCD is about a year old.

For normal use I run OpenSolaris from disk where the account is locked down. Only problem is multimedia which sucks on Solaris unless it's realplayer.