Maybe you're missing the point, however. What about the people who want to crank out some simplistic, but nifty apps which could drive further use of the iPhone

Maybe you're missing the point, however. What about the people who want to crank out some simplistic, but nifty apps which could drive further use of the iPhone, but they can't build them, because they (for some reason) can't afford a Mac. (But they have lots of available time. I'm thinking unemployed geeks, college students, etcetera)