So if Mac take something and make it better is this a bad thing?
Microsloth 'steal' without the permission from Apple and just can't make it work.
As you said Apple 'took' the idea from Sun with permission and improved it.
There are plenty of things that have been taken and improved upon in this world, it's not a crime it's evolution.
As for the GUI being 'pukey' are you telling me you're still using DOS?