Yeah, that's the general idea. The EULA states that OS X must be run on Apple hardware, and they don't make a netbook.
Apple is trying to make their EULA into enforceable law with the ongoing Psystar suit.
We'll see what happens.
Even if Apple wins the lawsuit against Psystar, it will only be of minor relevance:
1. It will only apply to the US.
2. It will still note make their EULA enforceable by law in every case and in any country.
3. If another cloner appears on the US horizon, they will have to file another lawsuit and find something they can sue that new company for. (Apple's main case against Psystar still is copyright infringement.)
4. This entire "sue anybody who dares to sell OS X with their computers" business is simply not sustainable for Apple on the long run.
I'm still waiting for Apple to sue that German company that is selling the "PearC". In Germany, Apple's EULA isn't even worth the paper it is (not) written on. The customer does not have access to that EULA --BEFORE-- he buys the product, therefor by German such a EULA cannot be applicable.
And furthermore, the guys behind the PearC do not even touch Apple's software - they sell their machines with a closed retail box of OS X and just add software to the box that enables their customers to boot and install a plain vanilla OS X version. Apple cannot even try and claim copyright infringement in this case. All they have is their EULA - which, in all probability, is not even valid by German law.
What does this mean for US customers? Even if Psystar is sued out of business by Apple, just go and order your "Hackintosh" from Germany.
Apple should wake up to some realities of life here and license their OS to anybody who wants to have and (re-)sell it on their hardware of choice. In other words: Apple, go ahead and copy Microsoft's business model and everybody will be happy.