I have two netbooks, both Acer Aspire Ones. One is an 10751h and the other is a smaller 532h. I prefer the 751 because it has a bit bigger screen and keyboard. It has Ubuntu on it.
The 532 only has Windows on it and I use it pretty much only for accessing my real estate mls site which requires windows and IE.
Anyway, the latest "upgrades" to Ubuntu and Flash made it so video was ungodly slow and loading of any flash on a website caused the CPU to load to 100%. Tried a lot of crap to fix it, to no avail. I decided to upgrade to Ubuntu 9.10 from 9.04 and see if that fixed anything, as it got so bad it was practically unusable anyway. 9.10 worked great except no sound. So I decided to further upgrade to 10.04. Big mistake. Now the damn thing is hosed.
I could probably fix it but I decided to try a new distro. Something NOT Ubuntu based. Trying Arch linux now. Already tried Debian but it's got issues. Arch has an Acer Inspire Network edition that's supposed to have everything working out of the box. The biggest problem with the 751 is the weird 1366x768 widescreen display and the quirky GMA500 video driver. Love these little Acers but sometimes getting stuff to work on them is a pain. I can't complain too much though, I've had the 751 for a year now and it worked flawlessly this entire time until a few days ago. But right now I am smashing my box (that's the equivalent of you guys tearing your hair out) trying to get this fixed.