I recently loaded my work netbook with Ubuntu 9.10, Karmic Koala. What’s interesting is that with the HP Mini 210, the touchpad is an integrated key/touchpad. Which means you can run into some really nastiness when it comes to trying to click or right click since the mouse will move to place where you’re “pressing” for the click.
Fortunately, someone had gone through the trouble of figuring out a patch for the touchpad so that the area where there’s supposed to be clicking buttons deactivates the sensors which makes it infinitely more useful. Just follow the directions there and patch the linux source and create yourself a new patched kernel module to run that actually makes the touchpad function as it should.
Brilliance of open source, eh? Now if only they figured out how to make multi-touch scrolling and such like the Mac… and believe me. Someone is probably already working on it.