Why does Intel support Linux?

> From everything I read, Intel is a big Linux supporter. Now they are
> joining IBM and others in setting up the legal defense fund for Linux
> users. I think that's great but I don't understand the business logic.
> In a Windows world people are pretty much stuck on Intel iron except for
> AMD which is a much smaller company. With Linux, they can migrate away
> from Intel any time. So why is Intel pursuing a strategy that can cost
> them market share.

Because it is a growing market that they can take advantage of (whereas Windows
might not have much more room to grow). Intel doesn't just make desktop and
server chips. They make chips for all kinds of applications (think Hubble).