[zanny]

I have a tablet and a dumb phone. One is for media consumption on the go, I have a keyword in case I want to do something on it, and if I want to make a phone call I use the dumb phone.

The tradeoffs to get a good interactive experience in your pocket (screen size, mainly) negatively impact the functional behavior of a smartphone as an earpiece (for phone calls). I think my preferred all in one device would be a tablet with a headset jack. Keeping the screen on the thing that goes next to the ear makes one end of the deal suffer.