Last week Muts and the Remote-Exploit.org crew released the beta of Backtrack 3, many updates and some new tools. I have to say that I love this livecd distro, I like it specially for its flexibility for me to add new tools and packages and have it run from a USB stick. you can download the latest version from Remote-exploit.org
I highly recommend the USB version since it has some additional tools that the CD version does not have do to space, I added to my copy Oracle Instant Cclient, Tor, some ruby Gems and a couple of my own scripts on Python and Ruby. I also recommend reading the wiki for more info on this great Live Distro.