future
Slow pace of technological change I believe. Sometimes a company will try to maintain profit or monopoly that it is disruptive to better devices' natural progression. Look at TV's in the living room. Who in the right mind would want a smaller screen compared to a large one? Or a smaller monitor compared to a larger monitor for the computer. As long as it is light enough to carry, people would prefer higher fidelity for the eyes. Just like they would prefer higher fidelity for the ears.
Which comes to the major point: carry. Why are we carrying our phones rather than wearing it? It is so stupid. We wear our bluetooth, we wear our glasses, we wear our watches. Why are we still carrying a phone? Just because a tiny elephant can't break a small rope doesn't mean he can't as an adult. So why are we still carrying phones?
We should be wearing it between the hand and the elbow. The screen should be the length of the forearm wrapped around and can unwind to be a large rectangular screen that you can touch (like an iPad), and rewind to the arm when not in use (well, it can still be touch sensitive for status and quick interactivity in wound state). This iWatch thing is so behind the times, if it is not long enough to cover the forearm (or at least half of it), it would be outdated the day it comes out. Tiny screens don't work, and wearable displays only works with a large display. Tiny devices only work if they are connected to a projection type display or holographic display: google glass is going in that direction).
But because designers are still stuck in their bubble, we have to settle for a large display you hold rather than wear. And thus we come back to 1080p devices with a good camera. I believe until Samsung gets a non-pentile screen out, it is between Sony, HTC, and whoever comes out with a large 1080p+ large display.