I do CAD-CAM work here, no way a tablet can begin to do what is needed in that area. They may be fine for the social media and other simple input apps, but anyone who is serious about worker production in an office setting will always take a PC over any small tablet now.
The best of both worlds is having both, but workers will be far more productive in a non-virtual office setting with a dedicated workstation to input on, and also far easier to control sensitive data if you are working in that area also.
Well said Abathar, throw in the use of dual screens for CADD and tablet will never do. Screen size is also of importance for many applications.
As do I. Solidworks and Pro/E. No, they are not going to run on a tablet, but they are not tablet type of programs that you're going to run in an airport or in front of the TV are they? I have an "engineering laptop" so designated by my companies IT folks and it has Solidworks 2010 on it and a dual monitor adapter in the base for my desktop. I don't use Solidworks while travelling with this PC except to view files, nothing more. Can't work in the constraints of a laptop environment. Think of what the average person does with a laptop PC. Surf, email, maybe a report or basic presentation outline. Is away from your desk the optimum situation for creating great anything? Not for me at least. While my laptop stays in the bag until needed, the tablet (iPad2 specifically) is the device of choice for things other than work.