Question: Are you going to be useing an interactive white board?
if yes, then you can rule out linux, as far as I know there are no linux drivers fore them
one thing I'd realy like to get working on my asus 901
If you are going to put XP on it then you'll need more memory esp with the atom, it's really not that fast, don't get me wrong it's good enough just remember it's not some super fast quad core that you can run 6 different thing at once on. I'm mentioning it as you'll probably need to add in the cost of a 1gb or 2gb memory stick as I don't think the 512mb in the acer One is really going to cut it.