I'm not sure...portable devices are still pieces of cr*p for a serious user. I consider those only as an extension of servers and workstation.
The home PC is dying yes but the business PC is still needed. I have trouble imagining myself designing plans in autocad on a tablet. What will occur instead is that the tablet will become the new PC but weMll still need to plug all theses babies on real mouse, keyboards and monitors.
All those engineers in sci-fi movies who design their stuff out of thin air on holographic tables and use "smartphone like" devices to control it make me laugh a lot.
Maybe I sound like an old fart but the tech world does not move as fast as some people claim. There is still a lot of tube TV out there and people who don't give a damn about smartphones.