What about the authorised hardware platform?
I trust Creative will be producing a list of all the motherboards (manufacturer/model no.) and all the PCs (manufacturer/model no.) each of their cards is intended to run with. We don't want to be stealing their IP rights by installing one of their boards into a PC it wasn't intended for, do we?
So until they have produced a list of each and every piece of hardware each of their soundcards is authorised to be installed into, we will all have to play safe by installing some other manufacturer's soundcard instead.
Sorry Creative. I really wouldn't want to get on the wrong side of your legal department so I can't take the chance.