http://www.dcrainmaker.com/...d-first-running.html

Looks pretty good.

I wonder if the TIckr X could provide data for their algorithms? Maybe Wahoo could license Stryd's software.

I've got a Magellan Echo that would be great for showing this data. Garmin GPS watches could show it easily as well although I think I purchased my last Garmin a few years ago.