Is it too soon to start speculation on this??  "This is a major coup, as these are merchants who currently do not accept any type of cryptocurrency. Their target demographic is extremely broad, but largely consists of younger people who are smartphone-entrenched, but aren't necessarily technical."

So on one hand you can say merchants like PayPal or Square.  But if you keep thinking about younger audiences perhaps something like Tinder or Snapchat would make sense.