That ship has sailed, and they are playing the long game now.
I feel like this is sort of like 10 years ago time... when we were just introduced of the idea of a tablet and no-one serious (besides small Indian startups) was doing it... and then the iPad came and suddenly this tablet thing was everywhere you looked. I wonder who will be the first (big company) to make a serious attempt of a usable phone-PC.
The performance should be decent, considering most apps are no longer CPU intensive.