Microsoft now scalping patent royalties from 70% of Android device makers globally

These include some pretty big names, like Samsung, and a bunch of smaller players as well. Samsung alone must be injecting quite a lot of cash to Redmond, considering how many millions of Android smartphones it sells, and the fairly significant per-device amount rumored to change hands.

It is not yet disclosed what patents have been infringed upon, although there is some speculation that the Galaxy Nexus and other phones lately don't come with memory card slots, because of the patented FAT file system needed to be used, which results in royalty payments. That's a speculation, though, and will be until someone peeps into the contracts and lets us know exactly which functions that Microsoft has patent-protected since the dawn of WinMo, are exactly in play here.

source: SlashGear