IrDA (ThinkPad)

http://www.thinkwiki.org/wiki/How_to_make_use_of_IrDA
http://www.plastic-spoon.de/Debian-Etch-Linux-auf-dem-ThinkPad-R51.html

http://forum.ubuntu-it.org/index.php?topic=182671.msg1637135

http://tuxmobil.org/Infrared-HOWTO/infrared-howto-c-getting-started.html#id2466246