Posting this in the lounge. This one is a still work in progress, imho, too slow.
Home site: http://tails.boum.org/index.en.html says this:
Tails is a live CD or live USB that aims at preserving your privacy and anonymity.
Internet connections go through TOR, and you leave nothing on the computer you're using unless you ask it explicitly.
It uses Iceweasel Browser and has some good applications. Biggest problems I found were the dreadfully slooow internet connection, and I couldn't log on here when using the TOR button, but could it I turned it off. Both issues are maybe a result of all those TOR bounces?
Desktop screenshot: