my (probably unpopular) view is that the 9" will be a bit of a flop. and i'll probably eat my words in a years time, but so what, it is fun to make predictions.
and why will it flop? price. by the time they have the price all worked out, "normal" laptops will have dropped further. it is nice to have an eee at all the popular price points, 299, 399, 499, 599, but only the lowest price point will attract those who are bargain hunting for a cool toy. proper laptops will compete with the 9" eee directly, but have more features, bigger screens etc. if you want a light small lappy for travelling you will probably pick the cheapest one, which will be the 7" and is probably why the 7" is selling so well now.
flame away..
I'd actually tend to agree with you. There is one ray of hope! The soon to be released Win XP version costs the same as the similarly spec'd Linux version. What this means is that there is some sort of saving on hardware somewhere if they can offer an XP license at the same price.
I really don't think it will cost $499, it's just no worth them even releasing the product. The whole point is that it's cheap and cheery.