Ah, Apple's legal department. Our favorite group of &%# people ever. Turns out someone over there hasn't been doing their homework. According to Safari for Windows' Software License PDF, the software is only to be installed on Apple-labeled computers
2. Permitted License Uses and Restrictions.
This License allows you to install and use one copy of the Apple Software on a single Apple-labeled computer at a time. The Apple Software may be used to reproduce materials so long as such use is limited to reproduction of non-copyrighted materials, materials in which you own the copyright, or materials you are authorized or legally permitted
