The latest version of Gmail's iOS app will not only support background app refresh, but also will provide for sign in across all Google apps. This means that once a user signs into gmail, he or she is automatically signed into all Google apps. This also works for signing out. This is leaving users up in arms over the fact that Google is even more intrusive in their daily mobile lives. Users are also complaining that the app refresh will eat up more battery power. In Europe, countries are investigating Google over privacy issues as a result.
Leo's not against privacy, but there is value to this as these features are more convenient for users. So, naturally, there's going to be a trade off since Google's apps are free. Leo says that if you don't like it, you don't have to participate. Leo likes it though, because ads are targeted to him based on his interests, and that shouldn't be discounted since research shows that people dislike ads that they have no interest in.
Leo doesn't consider this an invasion of privacy because Google isn't broadcasting all of his information to the rest of the world, it's just being used for serving him relevant ads and information.