At a former job we used to have a Just Jar, into which any programmer who said "why don't we just..." followed by something which is or may be nontrivial would have to put cash. Eventually the Just Jar's contents would be emptied out and used to buy a couple of rounds of beers. I heard that was actually fairly frequent at one time...
You seem to be implying making a touch-friendly interface is difficult. I made a touch-friendly interface for one of my websites by accident: making the buttons slightly bigger was all that was needed.