On laptops, the touchpad sometimes gets in the way of typing. It is possible to configure the touchpad so that it is automatically disabled while typing.
I did this in KUbuntu 10.04
This is done using syndaemon (found in package xserver-xorg-input-synaptics). Create a script called syndaemon.sh with the following content:
syndaemon -i 1 -d
Then set the script as executable and place it in your startup scripts (System Settings > Startup)
May need to restart...