You may have heard of Psystar, an infamous manufacturer of Mac clone "open computers." They're best known for frequently getting into legal hot water with Apple over everything from trademarks to copyrights to selling Apple's OS X operating on non-Apple computers. Apple just took Psystar to school on that last issue, winning summary judgment in a California court on copyright violations and Digital Millennium Copyright Act Violations.

Psystar's losing argument really splits some hairs, and the court wasn't buying it. Here's what happened: Psystar bought one copy of OS X and loaded it onto a Mac Mini. They then transferred it from the Mini to a non-Apple computer, where they modified the kernel so it would run on the computers they sell. Psystar argued that they were allowed to sell their (legally-purchased) copy of OS X, but the court recognized that the copies made from the Mini and the second, non-Apple machine weren't made legally. Advantage: Apple.

Judgment in Apple's favor means Psystar will likely have to pay damages at minimum. This could potentially sink their entire ship. The takeaway, according to an article on Groklaw? Don't mess around with licensing agreements, especially Apple's.

[via Slashdot]