The reality is that computers are still computers. Mobile is the new TV.
I run EUC in a large diversified enterprise. We have about 0.05% pure mobile users, mostly iPad based. That is growing quickly, but probably won't exceed 3% in the next 5 years based on the current pipeline. There are exceptions, iirc Comcast has 50k iPads. Other field service orgs are similar.
Server based computing is a thing though. There's alot of BYOD and thin clients in our future. Thin clients are approaching $100 and going lower. VDI/Citrix has a positive ROI for me.
I think the future looks more like Issac Asimov's multivac.