Strange news have been published recently:
News entry on information week
A company, using Linux systems/technologies pays some unknown license fees for "perhaps" patent violations, even MS not being able to prove anything...
So they probably just wish to prevent some treats from the big player in this business.
In other environments such stuff would be called "Protection racket", paying to prevent being harmed by the "stronger" player on the market.
With no proofs, no clear win for the one how pays....