I have infact done what you have said, and promised my client that i will be doing the next requirement of him. Luke is there a easy way to develop iPad apps using Adobe Air, Because i know little bit of flash and basic actionscripting knowledge.
Ofcourse you can code in Adobe AIR, and port it to Android/iOS. But there is no way, you can meet up with the high end requirement, in my eyes, entreprise minded. With just such things. The last time I tried one of those, for eg. You couldn't use UIAlertView's etc.
But if u wonna make some stuff that connects to a database, nothing too fancy, go ahead and use AIR.