Re: same old BS
I live out there too and currently get 8mbps ADSL2+ because we are a long way from the exchange. But what you are missing is that the nodes will not be at the exchanges but distributed around the suburbs. That is, there will be multiple nodes in an exchange footprint. This would mean that ADSL (xDSL?) to a node would be over only a km or so and easily sustain the 25 mbps you want. This is what those lucky people close to exchanges already get.
Oh, and BTW, ADSL technology has already been shown to go over 750 mbps on copper back in 2010 so I think FTTN is a very good balance of a very fast backbone with one or two orders of magnitude improvement in broadband speeds for us folk far from exchanges.