Done by whom? Mytouch/Magic owners could load up nesoid and see if it brings up a virtual keyboard, or any virtual controls, for touch input instead of physical button input. If it doesn't support any touch input, can it map any of the buttons (I think I read it supports trackball input)? If not then maybe the developer could touch input controls.
My only visibility into the app store is AndroLib/Cyrket (don't yet have an Android phone, having trouble deciding which one, maybe you can guess why), and I don't see any developer contact info or feedback options on those sites.