I'm speculating that Apple is monitoring the situation and as yet hasn't concluded that Psystar is enough of a threat to Apple's bottom line.
I mean who but a few geeks and the curious(Macworld, ect.) would actually spend money on something as half baked as the Psystar Open Computer.
These Psystar jokers probably have little or no visible assets to attach so why bother going to court.
If someone such as Dell tried this(Michael developed a brain tumor or something) of course Apple would be in court in a nano second.
That's my take on it.
I'm no Apple fan boy and for a serious hobbyist creating music an upgradable mini tower Mac has been on my wish list for some time but I guess Apple has other plans.
The Psystar solution looks like just a cruel joke to me.
Great answer - I was wondering also why Apple hasn't done anything.
They may do something if more and more system builders jump on the bandwagon. Doubtful, though - I don't think most want to deal with it. Most people that do this sort of thing build their own machines anyways.
I'm Spring cleaning and getting ready to get rid of some old Mac clones. I'm thinking to myself - who wants to use a Mac designed like a PC anyways?