Hey guys... I've been working for a while on this app to use as a bridge between Myo and an Arduino with a Bluetooth Low energy module...

In the video you can see how the myo connects to the app using the myo sdk.. but the turn off feature is not included in the SDK.. so i had to use directly the bluetooth protocol to shut it down.

http://developerblog.myo.com/myo-bluetooth-spec-released/