It changes everything for consumers. I don't know about people around you, but around me 99% of people just use their smartphone to either 1) play such silly games that they make 80's Pacman look like a piece of Art, 2) use Facebook messaging/email 3) use it as a (poor) camera 4) consulting news/weather 5) use it as GPS for maps/directions.

I see about no productive work happening on smartphones. It's a leisure device at best, or something convenient, but not something that will ever replace a PC with a proper OS and full keyboard.

Sure, there will always be the 1% of folks who does something else with their smartphone, but that's a very, very small minority.

I see nothing wrong with having a consumer-mostly device in my pocket. In fact, I see a lot right with it, as I can use it to communicate with everyone I know in a variety of ways, navigate anywhere I want, and look up whatever information I need just about anywhere.

I don't understand when developers feel threatened by the existence of consumer devices.