It's not just tablets, organisations everywhere have for years been deploying new technology that brings with it the promise of improved productivity. In reality it often does not... You take old hardware and old software that works just fine, and spend a fortune replacing it with new faster hardware running new slower software.
(should be +5 insightful right there)
There have been many companies *cough* Microsoft *cough* whose stock answer since the early 1990s has been "throw more hardware at the problem" (because of the implicit "our new software soaks up so much more system resources than the old stuff, that you'll need it").
It's only in the last few years that the hardware has overtaken the software so much that people forget how bad the "new stuff isn't any faster than the old stuff" had got.
instead of the software supporting the business, the business has to adapt to the way the software works.
A previous boss of mine (company director) stated "the needs of the business dictate the IT required. Not the other way round" Unfortunately, there are so many instances of the IT tail wagging the business dog that it really isn't funny any more (as if it ever was). Sharepoint, I'm looking at you, here (amongst many others on the wall of shame)