Much more effective to go after individual phone makers. If you go after Google you go after a company that obviously has a big stake in mobile share and will

Much more effective to go after individual phone makers. If you go after Google you go after a company that obviously has a big stake in mobile share and will want to fight for it. If you go after individual phone makers, they have to decide if it is worth continuing going down this path. Even more likely, a new phone maker might get scared off at producing a clone that doesn't have the financial resources to fight Apple.