We know that Microsoft has been quietly collecting royalties for patents used in Android products. HTC has been reported in the past that they're paying $5 to Microsoft for every Android device they put out, and not too long ago we reported that ViewSonic and Acer had also entered in an agreement with Microsoft to pay them royalties for any Android products they made, and now it looks like Samsung has been added to the list.
Ubergizmo, Samsung to start paying Microsoft royalties for Android devices