It's not about how powerful the hardware is, but how powerful and responsive the applications are. If they try to emulate a full blown Windows desktop on a low powered device, then the buyer has the worst of both worlds.

The problem I have with all in one type devices is that they are competing with just buying one of each, at a time when hardware prices seem to be tumbling.

If your top sales guys ask for a tablet and a laptop maybe you just give them one of each, rather than worrying about whether you can save a couple of hundred $ with some all in one device that does neither especially well.

Also a lot of corporate workers do their work primarily using one or two bespoke corporate apps which may be either web apps or some .Net (or even VB6) app. In this case they want to roll out a lot of cheap devices but they may not really care about portability because they don't want the devices taken out of the building.

The other thing I wonder about is how good the paradigm of a keyboard plus a touchscreen really is without a mouse, especially considering how cheap a basic mouse is. One of the companies I do a lot of work for uses PCs that have touch screens in addition to mice, but in reality the touch screen is almost never used. I imagine this is mainly because the amount of arm movement required to move your right hand over to the mouse is significantly less than it is to raise it to a screen.