The end-user license agreement for Apple’s flagship operating system (OS X) has been interpreted in a number of ways since the beginning for the Hackintosh controversy. If you ask the courts that handled the Psystar case, ruling in favor of Apple, the answer would be a most definite no.
Psystar was an interesting case. The company actually sold computers pre-designed to accept OS X as a native operating system. As much as Psystar tried to circumvent the EULA by proving a bundled copy of OS X and not actually installing the software itself, Apple’s lawsuit was successful, winning damages and multiple appeals against Psystar, which has since been permanently barred from selling its Hackintosh systems.
That’s a case where the systems were sold, but what about home users who are building them for friends and/or family? Are they breaking the law?