I don't believe anti-trust gets as specific as "BASIC interpreters for the Apple II" for markets.

I don't understand what you're asking here.

I was asking if anti-trust laws still has this issue today. Thinking about it, I think it probably still does.

Anti-trust laws haven't changed much in the last 30 years. And there's no reason to think it would cover this case just because you don't like it. Even if this behavior should be illegal, it would be a different category of law, much like how punching someone in the face is illegal, but isn't covered under the law prohibiting murder.

It's not an "issue" -- it's what makes sense.

Monopoly has a specific, defined, meaning. You cannot bend it to suit every little niche market there is.