Congratulations! Nicely done. I actually built a very similar system about two years ago, when I was screwing around with the Wikipedia dataset as a playgroun

Congratulations! Nicely done. I actually built a very similar system about two years ago, when I was screwing around with the Wikipedia dataset as a playground for some graph theory experiments, but it never occurred to me to make it into an iPhone app. Brilliant move. If you're looking to make an "advanced" version, I coded a variation where each page was weighted by the number of in-bound links from other pages, and the goal was to minimize the weighted path. I found that led to some interesting lateral thinking to find more obscure connections between topics.