[jrochkind1]

How much revenue/profit do you think they get from that (possibly, imagined) huge market share? Compared to iOS?

I guess that is something we could research.

This isn't profit/revenue, but some brief googling suggests 77 million iOS devices shipped in Q1 2018, and 5 million MacOS devices in the same quarter.

It seems clear that devices like this one announced are at least intended to capture some of the previous market for MacOS laptops as well.

Market share doesn't mean much if the market isn't contributing much to their bottom line, and/or has an expense to produce out of line with it's revenue/profit.

Ah, here we go:

"The Mac's Waning Relevance to Apple" https://www.statista.com/chart/8817/mac-sales-as-a-percentag...

I think releases like OP will accelerate this trend further.