> Yes, constant vigilance so that they never regain that position again, as I'm pretty sure they desperately want to.

I doubt Microsoft wants to reign as a dark lord again at the moment - rather, they're attempting to grow their business through use of open technologies, like Google back in the 2000's. Although if any MS products/services become too dominant, I have no doubt that (like any other big company in such a position) they'll fall to the temptation to exploit their dominance for more money and power.

It's not Microsoft that's evil -- it's people and their capacity to be corrupted by inordinate power.