Would love to get your opinions and feedback on this machine coming to market supposedly soon, and supposedly uses a BT connection from your phone or smart device to control the coil. Similar to Deus, but using a phone or iPod touch etc. as the controller. Believe it's single frequency. Here's a video demo.   I've long liked the idea of a setup like this but I thought there were good reasons the major players have not created a machine utilizing a phone or iPod touch this way, so