Neither Jango nor Radioairplay are frontrunners in their field - Tunein and especially Pandora have 10x registered users and a greater number of unregistered users.
It looks like they've been editing the NeuCoin site and wikipedia a lot but one of their earliest claims was NeuCoin would have 1 million users within a year, when Bitcoin itself only has 100,000, according to the Federal Reserve, to 250,000, according to Jeffrey Robinson. In other words Kaufman thinks he can attain 10x more users than BTC within 12 months (even though his current forum appears to be a ghost town).
Jango and Radioairplay together, if there is not an overlap in users, is only around 14 million freemium users (meaning at least 97%+ does not pay for anything) and if he can really get 8% of them to adopt NeuCoin then Daniel Kaufman is in the wrong business - he would be making $10s of millions doing seminars on freemium conversion because that accomplishment would be like selling ice to Eskimos or Oxygen to 1 billion people on earth.