I expect that to change in the future. Apple had a head start in that debarment and got the design right early on but it is already clear everyone else has caught up and figured it out.
I expect in the future to see the iPad get kick out in favor of cheaper alternatives that get the job done.
Cost is what will kick the iPad out of those areas because I have a feeling right now the iPad in terms of power and capabilities is mass over kill and on top of that it is limited in terms of what custom software and UI that can be installed on it.
I honestly expect for lets say hositals in the future someone is going to take Android and build a custom user interface and software to do something cheaper and better because it will be custom designed exactly for what it needs to be done.
Why would a custom interface for a hospital be needed? Wouldn't a custom app work instead or is this you going against Apple again?
Seems to be a couple of companies are doing just that.