Pretty cool...

This app is a great idea but, as some users have pointed out, you need a lot of varied speed music for it to work well; which leads me to my feature request: Add the ability to list your songs by BPM or approximate pace. It would be awesome to know before I start running that I only have one or two songs for a 8:00 pace. Keep up the good work!

6Hops about jog.fm - Running music at your pace