> I think people still want to use different form factors in the future. There's different uses for a phone, a tablet, a laptop and a desktop.
> The only thing you save from running your desktop (or even laptop) form factor off your phone is the processor (CPU, GPU, RAM). You still have to pay for everything else.
Having used the same device as my tablet/laptop/desktop for a few years (previously a couple of generations of Surface Book, now the Envy, in both cases with a dock set up on my desk), I never want to go back. It just makes using it so much smoother, even compared to having tab sync and what have you between multiple devices. It's not a money thing, it's a convenience thing, which is why I think it'll win out in the end.
I think as hardware continues to get thinner and lighter, the advantage of a tablet-only device compared to a tablet/laptop will disappear, and as touchscreens get cheaper, there'll be little point in laptop-only devices. I definitely still want an easy way to take a keyboard with my device on the train/plane, and I don't know what exact hardware arrangement will win out for that, but I'm confident that the convergence will happen. I think phone convergence will also happen eventually, for the same reason, but how that will actually work in terms of the physical form factor is anyone's guess.