- lenovo_x220_4290rv5.icc - color profile for Thinkpad x220 with IPS display
- biosupdate.img - thinkpad bios update 1.36 image, update via usb or grub
- great resource about linux on thinkpad: http://thinkwiki.org
- my notes about linux on x220: https://gist.github.com/1183950
- bios update without windows http://www.floccinaucinihilipilification.net/blog/2011/10/2/updating-the-bios-of-a-thinkpad-x220-using-linux.html