You don't need a custom plugin for that. It is built in.
Use the Touch-Plugin and look at the properties on the left side. There you can set that the Touch-Plugin listens to "Mouse-Input" - i.e a mouseclick is interpretet as on-touched-event. No you can replace all Mouse-click-events with Touch-events and finally delete the Mouse-object - but only if you do not use mouseover-events and similar.. <img src="smileys/smiley1.gif" border="0" align="middle" />
Ah, this is an interesting idea. Still a bit more labor intensive than I'd like as it requires replacing probably more than a hundred mouse click events, but something to consider.
As mentioned, this also doesn't really help in the case where I need a right click (about 1/3 as often as left click, but still often).
In my situation a simulation would be the ultimate time saver, but... sounds like there's not much I can do.
I've also discovered that iOS performance is awful (about 1/4 that of a pc based browser, even after I've tried all the performance tricks), and I'm running into all the sound issues everyone else has with html5 (basically, none of it works). So, with that in mind I'm getting less and less motivated to get it working.
Kind of a bummer, but it's ok.