A while back I wrote an Objective-C implementation of the Dijkstra algorithm for a hobby mapping project I was planning on putting together. I never got around to finishing the larger project, but I did get the Dijkstra code working, unit tested, and generally good to go. I called it PESGraph, stuck it on GitHub and kinda forgot about it.
But then, today, bam, I got an email from another app developer letting me know they used my code in an app they wrote for the Potomac Appalachian Trail Club. The app includes maps of the hiking trails in the park, and the developer, International Mapping, is using the code to direct their users from stop to stop.
Anyway, exciting stuff!
