Couldn't Google offer defense in such cases for its users? Every case is the same so it shouldn't even be that expensive (I guess, IANAL), and it would discourage future cases because the troll would know he will have to fight against Google.
What about actual patent violations?
"Their" in this case being "Google Play" product and any liability arising from the use of thereof.
One of these troll companies made $30 million a year doing this and they are even listed on the stock exchange!!
That is why that one copier patent troll (can't remember the specifics) files suit against businesses that purchase copier, but not the manufactures themselves.
It's appalling how limp this business is when it comes to demonstrating political muscle