You would not believe how many of my managers complain to us about how heavy and uncouth their laptop is to carry around. We actually had one guy apply for workplace compensation after his back caused him problems - he blamed it on carrying around a laptop + case.
I think you'd be surprised at the uptake of this kind of device in the corporate world if it was marketed correctly.
That's how we do it at my company. Each workstation is just a dock, screens, and mouse and keyboard. You can move around anywhere really easily.