Technically, Google can install arbitrary software on your phone -- Google Play installations are served by "push", not "pull". If you own a cell phone, you're

Technically, Google can install arbitrary software on your phone -- Google Play installations are served by "push", not "pull". If you own a cell phone, you're already screwed from a privacy standpoint with carriers tracking which tower you're connected to. tl;dr: You should be freaked out, but not by this.