IMO, as an oldtimer who's used Microsoft software since about 1976 and complained about it plenty over the years, breaking up Microsoft would work out about as poorly as breaking up AT&T, and just like a big drop of mercury, it would reform after a few years anyway.
As a strong open-source user and advocate, I have plenty of issues with how Microsoft has done business over the years. But breaking them up doesn't solve anything long term.
As a strong open-source user and advocate, I have plenty of issues with how Microsoft has done business over the years. But breaking them up doesn't solve anything long term. But they're looking at it not as a punitive measure, but as a move to potentially improve the company from the point of view of customers and shareholders. I tend not to see how it would help anything.