Well my adapter cable came today and doesn't seem to power on the hotwire. Cable is OTG per description (
http://www.amazon.com/dp/B0081F01T6/...-2147483554-20 ). Trying on an HTC Droid Incredible 4G LTE with Android 4.0.4 not sure what else to try or what setting may need to be changed in the phone to make it work. Have an RS Gen 2 esc.
~ Update ~ After doing more research, it appears the HTC Droid Incredible 4G LTE does not support OTG. So I guess it's worth spending a little time seeing if your android device supports OTG before you get your hopes up.