Lenovo ThinkPad X201
The X201 is a 4-core subnotebook produce by Lenovo. See Thinkwiki for more information.
Arch installs and runs flawlessly. Some specials features need tweaks, though.
To make hibernation work Template:Package Official is needed.
To get fbsplash to work, i915 has to be added to the modules array in mkinitcpio.conf:
Use Template:Package Official to enable frequency scaling.