Picked up an HP Mini 1000 series 10" about a month ago when my original Macbook Pro drank a glass of water as a stop gap measure. I have run this thing through 4 operating systems and (goddammit) it has been my primary computer with about 8-10 hourse use daily in that time.
First was winXP - as you can infer from my screen name I have never been its biggest fan.
Second was OSX using iDeneb - such a pain in the ass to get everything working right that it completely undermines the entire idea of having a mac. Clones will never kill Apples marketshare.
Third round Ubuntu Netbook Remix... Ok, the install was a breeze, the price cant be beat, and it picked up 90% of the hardware without a hiccup. Not bad. Until you start using it - graphical glitches everywhere. There is some single window dashboard on the netbook version that is sluggish and confusing garbage - turn it off first to even attempt to have a decent time. It still fails on so many common tasks without tweaking / dl'ing that it failed "The Wife Test" and that was it.
I cant see some hardware manufacturer sitting down and saying "Yes, this is the best way to show off and sell my hardware" after using it for a week.
Fourth and finally: Windows 7. Mac zealot since '99 here - first gen iPod and iPhone fanboy - and I have to say Windows 7 is by far the best thing Microsoft has put out since Windows 2000. THIS is what is going to kill Linux on netbook - the fact that Microsoft realized that they couldnt hand this segment to the Open Source community on a platter and designed an OS to run GREAT on a 1.6 Core Solo with 2GB of ram.
XP is garbage. Linux had a great chance to lead this market. But now Win7 is here and there is no way in hell the user experiences can be compared. [That said I am still just biding MY time for another macbook ;]