Following the discussion on this previous thread, I have decided to start an online petition to ask Canon to either develop such an app or open their API's for somebody else to do it.
Here is hope enough of you will sign it and share it so that Canon finally decides to make it.
So, please, sign it, share it !!!
I just release an image sharing app named "Photomete Share" for Windows Phone 8.1. It is NOT a remote control app but it does allow you to download up to 25 recent jpeg images from camera to phone. It has been tested on EOS 70D, and XA20 Camcorder.