Yikes that'll be pushing it just to get 100Mbps upstream on a node. You need a fair whack of spectrum to get that done, and more to the point clean spectrum.
Worth mentioning this trial deployment is just that. You won't be seeing it in your area any time soon if you're not in this initial trial. You won't be seeing it if you still have analogue in your area.
It might not ever become a product. It took a higher order modulation upgrade years to be used on the live network after sitting on a trial network for ages and this is a fair bit more complicated to do than that upgrade.
BTW The Juniper G10 was pretty too, as are the Terayon CMTSes.
Wonder what they'll be charging for the new modems that'll be required, they won't be able to get them for the price of a couple of pints
EDIT: I'd guesstimate this will be trialled alongside the Cachelogic boxes in Ashford, that has been analogue free for a while.
EDIT2: Confirmed:
http://www.pcpro.co.uk/news/83464/nt...broadband.html