I think the NDA requirement before revealing the infringing patents is a telling sign. They know they were weak and stand on shaky ground. I had thought that

I think the NDA requirement before revealing the infringing patents is a telling sign. They know they were weak and stand on shaky ground. I had thought that if some entity was to properly assert their patent rights, they had to make the specific patent claims known to the parties concerned which gives a period of time for the potentially infringing company to rectify, or to progress further into arbitration. Microsoft seems to be playing it like a organized crime protection scheme.