I completely disagree there as I believe it represents incredible business value, especially to your more higher-end industries like the airlines, banking and medicine.
'higher end' eh? You mean industries with requirements that can be satsified in a line of business way where people want to review information far more than actually add to it? No industry where large quantities of data need to be input, or manipulated will be able to have full-interface devices replaced with a tablet.
I've seen a lot of business turned down in recent times due to companies not providing the 'end-to-end' software package i.e. working on your stationary and mobile computers and devices.
As most business apps worth their salt don't work in client-server mode these days, but are browser-based this point is disingenuous at best, naive and ignorant at worst. An app that works in a browser, in a cross-platform manner is really where any business application should be going, because it massively reduces the implementation and maintenance overheads.
Offering apps for this and apps for that is a totally proprietary market view and although terribly fashionable I would suggest it's a fad, whereas standards-based apps, addressable through a browser will provide a more robust and portable long-term solution.
Of course you need to ensure your app is portable and can be used on tablets and smartphones. That's what responsive design should do for the front end interface of your application. Holding the fondleslab up as a cure-all and 'the way forward' is utter tosh and illustrates a rather limited understanding of business solutions and the corporate environment.
I still maintain, it's a girl's toy and ideal for people I'd highlight as computer user, non technical.