This is pretty cool.

This is pretty cool. I like the idea they mention of monitoring joint alignment and stuff. That could be useful in a lot of sports and even in therapy for injuries.

http://www.adafruit.com/blog/2014/11/05/these-ballet-shoes-will-track-your-dance-wearablewednesday/
http://www.adafruit.com/blog/2014/11/05/these-ballet-shoes-will-track-your-dance-wearablewednesday