So still looking at Hotspot2.0/Passpoint. I came across IronWifi. Looking at them they have a section where it is free to sign up for free for OpenRoaming. In which I believe OpenRoaming is built on top of Passpoint. I am correct in my statement? I have also notice just to sign up Wifi Alliance for Passpoint is 2-3k$. Is this correct or am I missing something?