I purchased the Dual XGPS190 upon release and attempted to test the GPS with the iFly app yesterday.  The connection was terribly unstable.  I was unable to link any actions or other running apps that contributed.  It was very difficult to even get iFly to recognize the XGPS as a device even in the Dual App was showing GPS connectivity.  I utilized the ADS-B Connected devices option to connect without consistent success.
I was bluetooth connected to my Bose A20 headset but no other devices.  It appeared at one time I was connected and when I switched music on to the headset, the iFly app again lost connection.
Anyone else using this yet and seeing any difficulty?  I have yet to run it on my android device.