So, I was testing the MSI Wind 100u, and I thought I would try installing OpenSuSE (sorry, OpenSUSE) on it, just for kicks. as you would obviously.
It wasn't bad actually. I was rather expecting to have loads of problems, but the only things that didn't work were the Wifi card and the screen. Yes, that sounds bad, but really, the screen was easy to fix by hacking the xorg.conf file for the unusual 1024x600 widescreen mode (SAX2 doesn't like the physical dimensions of the screen).
Wifi is more of a problem. There IS a driver, developed for Linux, apparently by MSI, but you really have to hunt around for it. Links I found by googling seemed to disappear after a few days of being posted. I eventually snatched it from some debian site. However, it does work, and is being actively developed it seems. The only letdown is that it doesn't yet support WPA2, so if you like your access point secure you may have to wait a while. The lesson for MSI here is that, yes, it is good you are helping write the driver, but for goodness sake, try to get some community involvement so it can actually be useful...
The Linux version of the Wind will cost about £50 less apparently, but it isn't clear whether it will be available in Europe. :(
I actually like the wind. 3 hours of battery, a NICE screen, 80GB hard drive, up to 2GB ram. It is a lot pricier than the Eee, but it packs the power of a real laptop, and the keyboard is nicer. so :P