Unlike Singtel etc, TPG seems operating with very low headcounts, withtout any fancy outlets, or call center. If can attract 1 million lines (quite easy to achieve, just need 30% of the customers from each existing telco) , with people going for $18/month, then one month can get at least around 18 millions revenue, min $200 millions per year. Actually this could be very profitable, if their operating cost is very low.