> Not only that they go out of their way to obstruct running software.

Apple delivered EFI 32 bit(ppc, 32) firmware updates to their 64 bit mac pro range, make booting/installing alternative operating systems much more difficult only shortly after the new intel range came out.

I had a few of these running Linux at the time and made the mistake of booting one into OSX to see if an update would fix an networking corner case, not an easy roll back.

You may wish to prefix your statement with "apple software".