Gentoo is a free operating system based on either Linux or FreeBSD that can be automatically optimized and customized for just about any application or need. Extreme configurability, performance and a top-notch user and developer community are all hallmarks of the Gentoo experience.
The LiveDVD features a superb list of packages, some of which are listed below.

• System packages include: Linux Kernel 2.6.30 (with gentoo patches),
  Accessibility Support with Speakup 3.1.3, BASH 4.0, GLIBC 2.9, GCC 4.3.2.
  Binutils 2.18, Python 2.6.2, Perl 5.8.8, and more.
  
• 
  Desktop Environments and window managers include: KDE 4.3.1, GNOME
  2.26.3, Xfce 4.6.1, Enlightenment 0.16.8.15, Openbox 3.4.7.2, Fluxbox 1.1.1,
  TWM 1.0.4, and more.
  
• 
  Office, graphics, and productivity applications include: OpenOffice
  3.1.1, G/Vim 7.2.182, Abiword 2.6.4, GNUCash 2.2.9, Scribus 1.3.3.11, GIMP
  2.6.4, Inkscape 0.46, Blende ... Read more »

Linux Kernel 2.6
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