Try and imagine using XCode on a tablet under iOS all day. Doesn't sound very appealing does it?
No one needs to supplant the workstation form-factor. What we're in the process of is realizing that there are tons of other opportunities in mobile form factors. Try to think of all the workplace activities that involve taking down data on pieces of paper and taking them over to a computer where they get entered. Try to think of all the times when people read off information from a specialized instrument and enter it into a computer. All of these are opportunities for mobile computing.
Totally agreed, one of the biggest industrial users of tablets is in hospitals, which is exactly what you're talking about.
Lots of people do seem to think that workstations will be supplanted though. So much hype about the "death of the PC," the "post-PC era," although I accept that "post" doesnt necessarily imply a world where that thing is totally gone.
No one needs to supplant the workstation form-factor. What we're in the process of is realizing that there are tons of other opportunities in mobile form factors. Try to think of all the workplace activities that involve taking down data on pieces of paper and taking them over to a computer where they get entered. Try to think of all the times when people read off information from a specialized instrument and enter it into a computer. All of these are opportunities for mobile computing.