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To start, brazilian laws are very pro-consumer centric; we have a very decent consumer code-of-defense that is applied throught a broad range of aspects in our lives.
We have no Digital Millenium Crap, and reverse engineering is not only legal in most cases - like porting code to unsuported devices or platforms - as there are laws to ensure that data will not be impossible to be used once a manufacturer stops selling the hardware it runs on. For example, anyone could create a Super Nintendo clone if they can prove that there is no way to buy a new one or (this is important) use your already purchased game in newer platforms (if Nintendo wants to charge you to play Super Mario 3 in the Wii even if you already have the game, for instance).
Well, this opens the door to anyone breaking the OSX bootloader in order to run on other hardware, but what about EULA?
Well, there are already some cases in justice were it was determined that a contract can't tell the buyer HOW TO use the product, nor forbit a specific usage of it.
What happens is that AFTER - remember, one is innocent until proven that isn't, something american legislators like to forget - the user misuses it, he can:
a) loose all warranty, support and devolution if the product is bought.
b) if the product is a subscription or service, the product can be cancelled - for example, you use your antenna of paid-TV to get channels that you do not pay for - and you can pay some fine - this is why subscription is getting popular here, few sell satellite antennas, most are borrowed to the consumer.
Now for that last part and most important part:
Software in Brazil, is not considered to be a "service" like Apple alleges, but a simple product like a hammer, so you end up with option (a), the only thing you can do is to void the warranty and support for the users that run OSX on a PC.
Pretty nice and legal
PS: Do not think that all of this is because Brazil do not have laws or such, we do; it is just that as was in US when it was a young nation, the laws are made to protect individuals, not big corporation's profit.
I don't believe you. Brazil is pro-consumer? Then why do Brazilians pay thru the roof for their products due to tariffs among others?
Simple economics, you need import tariffs to dissuade importation that which they should be making in their own country.
It's the lack of import tariffs that is killing the US as it's killing the US consumer base by exporting labor over seas in the name of artificially low prices in the short term.
High import tariffs lead to more companies hiring more workers to make consumer products in state, thus having more people in said state with the money to buy said goods thus building your consumer base and raising your nation's overall standard of living.
Exporting your labor only kills off your consumer base because you can't have an entire economy based on the financial or service industries. To do so is to make your economy a house of cards, a nudge in any direction causes the whole thing to collapse in on itself.