Thanks for the suggestion, Ashley. Sorry to say, it didn't work.
The iframes don't seem to be receiving any touch input. If I tap the buttons in the iframe, the iPad offers to copy the iframe for me.
I did accidentally get a touch event to trigger once (and only once)on an iPhone(iOS7 & Safari). I was holding it vertically and pounding on the screen. The touch event triggered and then the browser freaked out (screen redraws of the iframe all over the place). As one would expect, it froze up after that. While finding new ways to crash Apple products is entertaining, it's not the sort of progress I was hoping for. :)
I have seen elsewhere that some coders are having issues with iOS and iframes in that they are not able to get the content inside the iframe to scroll. Possibly related? Yay Apple.
Any suggestions (short of "Android") definitely welcome!
Cheers,
John