Mpentoo is a Gentoo Linux based Penetration Testing Distro.
Downloaded a copy of this a while ago, and when I first booted it up, I knew it was different.
This is possibly the coolest penetration testing live distro out there, with the "possible" exception of Backtrack
Based on Gentoo but a lot smaller, faster and with more security tools built in than almost all full fat distros.
I am using the Mpentoo version which is just over 200MB but is the latest release and a lot more powerfull (and smaller) than the older full size one.
This is one well worth testing.
http://www.pentoo.ch/-PENTOO-.htmlhttp://www.pentoo.ch/Mini-Pentoo-2006-1,83.htmlhttp://www.pentoo.ch/-Download-.html