> We can only guess based on what we hear. Cell phone manufacturers have a lot more data than we do and they keep going for thinness, so I have to imagine there's a demand for it.

I worry about this being "data driven design", where X sells so lets try X+1. Problem is that phones do not sell on their own. Most customers buy them with some plan attached, meaning they often grab what gets the biggest carrier subsidy (or whatever gets the seller the biggest commission).

That or they get whatever their neighbor/relative/coworker/friend has.

There are a whole pile of perverse incentives between the OEM and the users that may or may not show up in the data hitting the meeting room table.