The default configuration under eeebuntu 2.0 works pretty well but there are a couple glitches that are annoying. For one the multi-touch scroll is very jumpy and sensitive.

Here is a launchpad bug describing the driver problems in Intrepid with the Elantech toucpad.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/123775

See also this link for configuring the touchpad via gsynaptics.

https://help.ubuntu.com/community/SynapticsTouchpad#Enabling SHMConfig

This was all discussed in a great post under the above launchpad bug

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/123775/comments/84