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.
See also this link for configuring the touchpad via gsynaptics.
This was all discussed in a great post under the above launchpad bug