If it's really free, can I download and install it legally on my assembled PC?
Do you normally advocate violating license terms of a GPL product? Do you advocate lying to obtain an educational license of a product? Do you advocate lying to get an open source developer license of a development tool for free? The terms of the license are that you get OS X for free but you must use it on a mac. Why is it so hard for you to understand? They don't want to sell another version for OEMs to put on generic hardware and that it their choice as copyright holders how their software should be licensed.