A couple of problems with your argument:
- biggest one being that you *assume* that everyones's work habits are identical to yours
- plenty of occupations rely on on-the-go real time transactions
- much of the workflow today has been adjusted for the desktop. For example physicians and other clinical people would have to either use a desktop at the end of the day of dictation of notes and transfer some handwritten documentation. Lawyers would have to wait for their break to fire up their cell card on their laptop to access their corporate reference libraries and other material... And so on. This no longer has to be this way
Sure desktops and their successors will be around for a while, but to say tha iPads are entertainment toys, reminds me of a Chinese proverb "Frog in the well" where the frog thought the sky was as big as he could see through the well.
This is why Steve Jobs is a visionary who transformed Apple to have market cap bigger than the euros zone banks, and others are simply making fools of themselves trying to imitate him.
You give some good examples. I don't think people realise how much the workplace has had to adjust to the PC. When people say "can you imagine people being hunched over an iPad in the office?" I think they must be very naive because that was the reality for centuries before the PC. People had pads of paper, they had clipboards, they had files. Often they still use all those things because in many cases the PC can't integrate into their workflow well. Instead the PC is dragged out at the end of the day to input everything into a database. The "digital office" never came to pass because the PC is a fairly clunky device. There's actually an extensive literature of workplace studies about how difficult it is to fit personal computers into the workflows of most professional settings.
The problem, the bias, is that many commentators are developers and IT people whose only experience is of workflows that were built around the PC. If your daily routine is using a particular piece of software on a desktop PC with a mouse and keyboard it's surely difficult to imagine doing things any other way. For doctors and lawyers and engineers and other professionals whose professions vastly predate the PC, the PC has never been a great fit for what they do. The iPad is a much more natural device. You hold it like a pad of paper, you interact directly, it's light and mobile. It is already finding a place in the workflow of thousands of professionals and will continue to do so.