I sent a mail to the address that JL777 i.e. James tweeted. I am not sure if it is him that replied. It was some guy Noashh that replied to my mail asking for some details. I had spoken to James earlier about having SFR included into the Multi-Gateway Exchange which runs over NXT protocol. He said i need to configure some stuff so they can include it.
I haven't heard back from that Noashh guy about the supernet. I will try to PM James about it.