I got a Suunto foot minipod last week - bought online through mec.ca. I was a little hesitant at first as I had initially thought it was one if these 'measure your stride length' devices and it will then estimate distance, which obviously isn't a great solution for trail/mountain running. However, it actually works by calculating your stride length with it's accelerometer and sensors, so it's a very clever, sophisticated piece of kit.
It pairs up very quickly with the t6d, and out of the box seems very accurate though I have yet to do any 'official' calibration. It seems to work better than the GPS pod which is a bit finicky in the woods, though seems great out on the mountains.