Hello Alll,
This is my first forum post and I just released my first cache and was lucky enough to place a chirp in the cache and it was published.
http://www.geocaching.com/seek/cache_detai...d8-d8150edf0ea2
I only posted a message in my chirp thanking cachers for finding my first cache.
Looks like the chrip uses the same case as Garmin's Foot Pod.
https://buy.garmin.com/shop/shop.do?pID=15516
I think the notch is used to attach the Foot Pod to a shoe lace clip.