as a note, the EULA is not the only thing Apple is contesting in this lawsuit. thanks to an above post with the entire case PDF, most of apple's contentions deal with copyright infringement, i.e. Psystar selling software with apple's trademarks, such as Apple (and the logo), Leopard, and Mac. because Psystar sold products bearing these names, it infringed Apple's copyrights. even if the EULA doesn't stand up in court, these things will. I'm no lawyer, or trying to be one, bu this is plain copyright infringement.
indeed, in addition to the breach of contract issue, they've made claims for copyright infringement, induced copyright infringement (which is what caused the courts to shut down the original Napster), trademark infringement, trade dress infringement and several other things too
Psyster's got a lot of well established and litigated legal issues to worry about that go far beyond the EULA