Some more useful links:
Note: Ubuntu 9.04 installs pretty wel on the TC1100 out of the box.
Required additions are for enabling standby properly, some stylus options and screen rotation.
http://wiki.linuxquestions.org/wiki/Tc1100
http://www.unifyingtheory.net/tabletbuntu.html
http://alexmac.cc/tablet-apps/
http://ubuntuforums.org/showthread.php?t=1038949
http://ubuntuforums.org/showpost.php?p=7143916&postcount=154