I've been curious about this type of thing too. I've always thought, "For cryin' out loud, people have made beer for 2000 years. They didn't have specialized yeast. Heck, some of them just used wild yeast in the air, and hoped it made beer instead of vinegar. Yet, they've made BEER."
So, I (being an ultra Conservative who is always expecting the end days) have always wondered "How will I brew after the economic/shipping/retail infrastructure fails?"
The answer of course will be to use yeast that I've stocked up on (the easiest being bakers yeast) until that runs out, and then wild yeast.
So I'm very interested in seeing the results of these experiments. I'd like to try it myself, but I only have one primary, and one secondary, and I would like to make some prooven-to-be-good cider for CHRISTmas. So don't have time to experiment.
But, I eagerly await hearing about ya-all's results.