The site came from the idea that I had to try & run every street in my city. There wasn't any way to track that, so I had to build it myself ... Since I was building it, I figured I might as well make it so that others could use it as well.
I've been adding more features (I think the shoe tracker might be my favorite so far), and I've got more in mind. Right now, it only connects to RunKeeper, but I do want to get other services (and manual gpx uploads) integrated as well.