Doubts about National Broadband Network

Carlos Slim, who became the richest man in the world by monopolising Mexico's phone market, has savaged the Labour government's proposal to spend $43 billion on a national broadband network (NBN). He isn't knocking the need for a high speed national network, but questions the cost, and the viability of adopting today's technology at a time when technology is advancing so fast. He believes any network should, for instance, include a good WiFi element.
Another issue that is being talked about but not clarified is whether the quoted price for the NBN is a total price, including remediation work to streets and property after the installers have done their work.