I actually did buy a Thinkpad T20 largely because it had a good record of Linux support (although the preloaded OpenLinux was a rip-off extra charge, so I didn't get it). It's a pricey machine, but thin and with a beautiful screen, and it still has a fair number of Linux issues: you have to download a patched X-server, sound setup is a huge pain, and the network card tends to blink out after a suspend. Otherwise, pretty slick though (and the patched server for the S3 works really well).
Basically, I don't care if the vendor pre-installs Linux, as long as they make high-quality device drivers freely available and maybe put up a one-page doc describing potential issues. I don't think that's too much to ask for when you're buying a $3,500+ machine. . .
--JRZ
Thinkpads and Linux (Score:2)