I imagine android users will soon see os-wide ads, too. Except they won't be OS-wide, they'll be Play Services wide and mandatory if you're an vendor including

I imagine android users will soon see os-wide ads, too. Except they won't be OS-wide, they'll be Play Services wide and mandatory if you're an vendor including Play Services. If you don't want Google's ads, you can go do your own thing on AOSP like Amazon and other largely-flopped attempts.