[muzani]

I think apps of today would be gone. We'd probably peak with Palm OS and similar. There would probably still be some apps and game devs for mobile devices. Someone would find a way to make D&D or roller coaster tycoon for a Palm Pilot. We'd be playing MUDs on our phones instead of MMOs; not necessarily a bad thing.

Twitter might be in the form of typing out a SMS to a certain number, and it would all be plaintext.

I think the main effect would be in developing countries. Currently, the poor buy an iPhone instead of a TV and a car, and the phone gives them job security and entertainment. They'd probably be working different kinds of jobs - demand for office work like clerks might be 8x or so, considering that you can't automate things like government processes.