Pentoo is a security-focused livecd based on Gentoo
It's basically a gentoo install with lots of customized tools, customized kernel, and much more..........
Kernel 2.6.31.6 with lzma and aufs patches
Wifi stack 2.6.32_rc7
Module loading support ala slax
Changes saving on usb stick
Enlightenment DR17 WM
Cuda/OPENCL cracking support with development tools
System updates if you got it finally installed

Download
http://mirror.switch.ch/ftp/mirror/pentoo/