Re: Pitfalls of G.fast
Oh it's worse than that. Although they are keeping their cards close to their chest BT have indicated that at least initially their spangly new G.FAST units will be attached to existing FTTC cabinets. So they will be giving a speed boost to a subset of existing 'fibre' users rather than extending the reach of high-speed broadband.
That will also rule out this symmetric technology as good cross-talk mitigation is essential.