Google wants to be the 900 lb gorilla in the aisles, as a protection racket or a body guard, I dunno, to your average patent holder. Patent trolls have all but made it impossible for small, non-corporate inventors to navigate and survive the system because of litigation. To the point that patents will likely cease to be enforceable in any practical sense very soon. We are evolving into an open source world, including systems and hardware. The second you release a patented product that sells or looks like it has potential to sell, it is going to be copied and marketed without your authorization. Even big corporations get burned on infringements all the time.