I have an IBM Thinkpad x41 Tablet, and using this blog: http://wordsarelies.blogspot.com/2009/05/ubuntu-904-jaunty-on-thinkpad-x41.html
I was able to remap the tablet keys (the buttons right below the screen) to the unused keycodes 130, 131, and 132.
Then I was able to assign these keys to xournal, a script that rotates the screen, and cellwriter.
After upgrading from 11.04 to 11.10, pressing these keys no longer started the applications/ rotated the screen.
I looked at my keyboard shortcut settings, and it still registered that I was pressing the keys, but would not run the applications.
When I switched the shortcut to Alt+r (or anything else on the keyboard) It activated the programs with no problem.
I am at a loss at what to do to make these buttons work again and any help would be greatly appreciated.