I agree, you'll be much happier with a CULV notebook, the atoms powered computers are useless if you have more than one app/window open at once.
heres another CULV for 500.
http://www.tigerdirect.ca/applicatio...VYa8OWDPBfV30A
From the reivews, it's draw backs is the trackpad can be sluggish, the keyboard isn't all that comfortable, and the trackpad button is bar style.
i did a quick google and got a review:
http://www.notebookreview.com/default.asp?newsID=5088
Alternatively, you could try the wind 12. using a AMD cpu, you won't see as much battery life, but better performance.
http://www.amazon.com/MSI-U210-008US-12-1-Inch-Black-Netbook/dp/B002LZUHNW
this is 419 USD. but we're like at 0.9x in exchange rate
it has a synaptics trackpad so you might be able to get multitouch on it (i'm a big fan of 2 finger scroll).
here is a review:
http://www.notebookreview.com/defaul...ewsID=5302&p=2
but if you were to stick in your budget, i would go with the asus netbook. multitouch. and i've heard good things from their line of netbooks, plus they've a good reputation as a company.