I'm nowhere near making a living, but my "Brainstormer" app (http://www.tapnik.com/brainstormer) is making enough to pay for my apple gadgets, so it's kind of a self-sustaining hobby at this point.

I just released a free, iAd supported game called "Still Pond" (video review: http://www.appspy.com/still-pond-review) which is only making pocket change, but I haven't done any promotion on it.