Foxconn Becomes Largest Microsoft Patent Licensee

Remember, Microsoft doesn't care (much) about the money. The more important value of the Android patent racket for them is in making Android less competitive to defend/promote Windows, Windows Phone and Windows RT. Doing a deal with Google cuts against that, so Microsoft would (rationally) ask for a lot.

On the other side, going after OEMs one-by-one creates FUD and puts more pressure on Google as each OEM domino falls (especially when the various licensing agreements need to be renewed). Plus, unlike Google, most OEMs have significant Microsoft-related product lines whose licensing and promotion costs can be used to obscure the true economic substance of any licensing agreement.