I would not be surprised if Google injected some ads into the games as soon as their service reached critical mass and thus killing immersion.

Maybe I'm super negative here but I don't see any pros to this development. Today's games are already dumbed down and steered towards profits only. The only games I play these days are indie games made by 1 person up to a handful of people.

We really don't need more but we need better. (This applies to many other areas too)