Today sees the UK launch of Blyk, the newest MVNO to hit Europe (see post). The operator will target only one age sector—the 16-24 bracket much coveted by marketeers—but is betting growing acceptance of mobile advertising will justify its decision to offer no-cost calls and SMS. So far, it has racked up an impressive list of big brands including Coca Cola, Disney’s (NYSE: DIS) Buena Vista International and McDonalds. But can Blyk convert low-ARPU subscribers to big profit? At the launch event, COO and UK MD Leif Fagelstedt told paidContent:UK: “(Advertisers) are drawn to us because we will be touching our users six times a day. That means six commercial messages, nothing more or less.” More on our UK site here…