Just to put a bit of context here. I wasn't meant to start that intel vs. arm debate.
I've raised this specifically because article made claim that ARM have grown and is "fast enough". And we definitely have enough evidence to doubt that.
So far my impressions is that ARM is not yet there. So it seems a bit early to claim that you don't need your PC. But maybe a couple of years from now we'll see. Ubuntu's idea looks neat.
So in this context I don't care if that's intel or arm chip as long as it gives or not gives us future where "normal" users don't need PC.