From my limited research (Texas public universities), most college programs are based on Java coursework. Maybe Microsoft software runs the PCs in the labs, but the only MS-centric field of study I'm aware of is the management information systems track, which is in the business schools.

I can't speak for anyone else, but I rejected Microsoft primarily because it's too easy to write complete garbage code on a MS platform. Anyone who's had to dissect/revise/resurrect/secure/support anything running on Windows machines (and isn't on their third cup of powder blue Kool-Aid) can readily produce horror stories about the nightmare that is Microsoft.

Microsoft is PAIN.

They might not go away in the foreseeable future, but if their products continue to deprive devs, designers, admins, and lowly server monkeys of valuable sleep and sanity, alternatives will continue to be sought, until alternatives dominate the marketplace.

Although the new Windows stuff (7 & 2008) is pretty good. Maybe they'll learn their lesson, and wouldn't that just be delightful?