People want a do-everything device that fits in their pocket. Specifically their pocket. People who already have their phone in their hand are not going to put

People want a do-everything device that fits in their pocket. Specifically their pocket. People who already have their phone in their hand are not going to put their phone away, open up their bag, take out their tablet, just to get a larger screen. People leave their bags behind when they go to the gym floor, into the bathroom at work and home, etc. Leave us engineering professionals (who need workstations to be productive) out of it. Most people have one, pocketable, device. It doesn't take a rocket scientist to understand that, if you work within that restriction, that bigger screens will give people better experiences and thus make for better products. If it ever becomes feasible to have a phone that unfolds into the size of a TV, you'll quickly find fixed-size TVs become niche products for always-on monitoring dashboards and advertising billboards. People will just unfold their phones to watch whatever show or movie they're going to watch, even if it takes them a couple of minutes to unfold their phone that far to set it up.