> the concept of having a separate mobile device and a computing device will be irrelevant.

Well ... yeah. People have been predicting and experimenting with this for more than a decade.

But when you do this some parts of each platform has to suffer. It's a compromise. User interfaces have to change, designs have to consolidate, performance or features take a hit.

So the challenge becomes how do you sell this? Seamlessly moving from desktop to mobile sounds nice but is it actually practical? Do we actually want it?