iinet has said in the last day or 2 that in the trial areas they only have 3.7% of premises connected as customers via ADSL. In 2-3 years I'm confident they could get close to that with fibre. iinet is the 2nd largest broadband ISP by broadband customer numbers. I'm sure Telstra haven't just realised they were not as price competitive as they could be and decided to compete late last year. It's when NBN has started to get operational customers. Testra's customers will be on contracts (which can be broken - often for a fee) so it'll take time for people to be contract free.