Maybe not in Finland, but in America, we have the DMCA. The law strengthens the EULA to act as a contract, so if Apple stipulates the terms of use for its software within it, then use contrary to the EULA could be perceived to violate copyright law. But yeah, if you bought a copy, I'm sure Apple doesn't give a **** what you do with it. However, I'd wager than most non-Apple OS X machines aren't running licensed copies, but that's neither here nor there.