Google Glass runs on android, will MS try to cash in?

We all know Google plan to publicly sell Google Glass later this year. Larry Page has confirmed it runs on a variant of android....

Google Glass runs on Android: Larry Page

The big question is will M$ decide to unleash their patent war horse and try to claim royalties for it?

We have already seen Nikon paying MS for cameras that make use of android...

Nikon signs patent deal with Microsoft for Android-based cameras

Will MS have a case against Google Glass too? assume they do will they have the guts to ask them for patent royalties?

It could get sure Foxconn is a nice little earner for MS right now.