I've been looking at netbooks for a while, and have tried all the ones I can put my hands on. For my tastes, I need a keyboard no smaller than 90% spacing. Second requirement is that the keys are scooped on the top, not flat. That way, if my fingers start to go off center, they can constantly re-calibrate themselves.
I've tried one of the HP netbooks (one of the 110 models, I think), an ASUS 1005, and an Acer D250 series. I really liked the key spacing on the HP & ASUS models, but the problem with both of them is I kept making typing errors. This is because the keys are too flat on the top, and there is no spacing between the keys. Now the Acer key tops felt better (due to the spacing and a slight concave texture), but it felt a bit more cramped (not as bad as the original Asus netboks like the 701). But in spite of the cramped feeling I was able to type several sentences without any typos.
So my vote out of those three would go to the Acer D250. But you have to watch carefully which model you pick up. Check the 4-digit model code on their web site -- each combination of features gets a different code. Most of the stores (Best Buy, Office Max/Depot, Target, etc.) are getting the ones with the 3-cell battery. You'd want the 6-cell battery (only costs $30 more online). And they have three different 6-cell units -- 4800, 5200, and 5800 mAh). That, in addition to different combinations of ram, cpu, and speed.