Yes, it has nothing to do with their Windows monopoly and a total lack of guarantees to any developer who wants to create applications for it.

Do an office suite? Not viable, MS has its own version.

Do a nice application for doing whatever? If it's successful MS will do their own version. And release it for free.

Balmer said it: Developers! Developers! Developers!

But now how can any developer invest in MS without realizing it is suicidal?