How much? I know it's undisclosed but it would be very interesting. Hopefully someone leaks it. The rumor was Miguel told MS to "F*#K Off" when MS presented him with an offer many years ago. This lead to CoreCLR being open sourced and Visual Studio Code being built. I'd like to know if by undermining parts of Xamarins business they were able to get them at substantial discount - especially with the tech industry down…
The rumor sounds bogus. MS has been collaborating with Xamarin (and it's previous incarnation) for almost a decade.