That's odd, 10.04 works fine with the wireless in my EeePc 901. Alpha straight up through the release candidate. Yes mine does have the RaLink RT2860 wireless chip. I actually use my Eee as my test platform for all the new Ubuntu releases, since I don't store anything on it it's easy to wipe and do clean installs. A month or two on that before upgrading my workstation (if at all, depending on the release).