Pure speculation on my part, but this could be a big part to replacing a Phone + Chromebook for computing and connectivity with just a Phone. This is a concept I really like.

There have been a few early attempts at this in past. The Asus Phonepad comes to mind.

With a setup like this you don’t need any kind off mobile hotspot, because the thing providing the hotspot would be the thing where you’re doing your computing.

I would love a day where I could just have a phone for everything