The article also makes a lot of assumptions, i.e. MS makes $5 per unit sold and the patent covers 70% of the market. Estimates of MS making $5 - $15 per unit and MS having nearly every major OEM under a license.
I have read that Samsung, HTC, LG, and others are under the license with MS whereas Sony and Moto are not - and therefore do not have to pay MS patent fees. I do not understand how exactly that works, why do some OEMs have to pay MS and not others? If Moto, owned by Google, does not have to pay, why doesn't google use those patents that prevents Moto from paying MS to get those other OEMs off the hook?
Regardless, MS wants more money out of android, their consortium - which ironically includes Sony - is
suing google and Android OEMs over the nortel patents.