In 1984, it began to retain publishing rights on manuals created for Unix vendors.

This makes it sound like Apple is some sort of dinosaur commercial Unix vendor.

It's five times what Sun has ever sold as the most successful Unix vendor.

Most Unix vendors, he pointed out, "were selling a hardware platform of their own, so right off the bat you had a hardware incompatibility."

The serious Unix vendors didn't want to undercut their overpriced proprietary hardware.

Next is farther ahead in software than any of the Unix vendors or Windows.

Fear among the Unix vendors has finally created a series of alliances where in the past there was little more than intramural bickering.

But Apple is not your typical Unix vendor.

But, he says, many of the Unix vendors have lost their way.

In short, many Unix vendors are being shackled by their desire to own everything.