MyLoc - Find your location and notify your contacts with ease

I'm into long distance bicycling and often just want to quickly let my wife know where I am without having to text/email her. GPS devices are great, but do eat up battery, and I don't need live tracking. So I created this. I think it might have even more applications. I've been posting this link to get more feedback. I know that there have been and are currently similar location based apps, but I am building this to other unique specifications. I'd love to know what you all think! Thanks! :)