It would probably help if you could explain a bit more about how you want the stuff to interact. That said, no law says a form can only have one submit button, and, when submitted it is possible to figure out which button is clicked--the name/value (text) of the button appear in the posted data. Exactly how to handle that really goes to what needs to happen and how you want to architect it, but you can definitely give a form multiple buttons.
--UPDATE--
Thanks for the clairifications. I think your best bet would be to use normal links and style them a bit:
a.button { display: block; width: 100px; float: left; }
They should be nice big clickable things in iTouches and in other more modern mobiles and degrade nicely in older mobile stuff as there really ain't nothing that can do HTML that doesn't support links.