If you haven't looked at the Ubuntu Netbook Remix lately, I think you are in for a very pleasant surprise. Check out either the Beta distribution or the Daily Build.
I loaded the Beta on my ASUS N10J, and I was amazed. I have not been a big fan of UNR until now, I found the desktop to be a bit, hmmm, I can't quite think of the right description - clunky, unrefined, very much in-your-face, I suppose in an attempt to make it "obvious". It was vastly superior to the Moblin desktop if your purpose with the netbook was anything other than "Social Networking", but I still didn't care for it for my own daily use. The new desktop is much nicer, it seems smoother and I actually find it much more obvious to use than the previous version simply because you don't have everything "shouting at you" from the desktop.