TPG Telecom Ltd has announced it intends to become Australia’s fourth mobile network operator, along with Telstra, Optus and Vodafone.

TPG Telecom Ltd has purchased spectrum licenses for A$1.26 billion and will spend another A$600 million building the network infrastructure. However, it has emphasised it will not be competing across the whole Australian market, just 80% of the population.

So what will the mobile network environment look like in a few years time? It is reasonable to make some informed forecasts.