I think the messenger part was the ability to give an app of your choosing permissions to be your default SMS app, and in this case he chose Facebook's. App dr

I think the messenger part was the ability to give an app of your choosing permissions to be your default SMS app, and in this case he chose Facebook's. App drawer, it's personal preference but personally I like having a single home page and the rest of my apps in my drawer. But again that's just personal preference, I'm sure a lot of people would call it a negative because they have to manually move an app out of the app drawer every time they install one.