Sounds interesting.
Currently our broadband in on a seperate BT line that of our Sky digi/HD boxes. Our digi boxes are on the original internal extension wiring on our first phone line (which tours the house before it gets to my room). The second line (fitted specifically for DSL after ~2 years of moving in) comes straight in from outside and into my room.
Unfortunately our SkyHD box is in our living room connected to our first line and miles away from where the DSL router is sat. Luckily we had our house wired up with Cat5e to each room (2 for the living room - 1 in each corner on one wall) so I can still hook up the SkyHD box to the router over our home LAN

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One downside to all the potential Sky on demand stuff is the fact that our DSL line is only capable of ~3mb maximum going by my router stat's. Just switched over to Sky today and it's sync'd at 2880kpbs but speedtests are coming back at just over 1200kbps at most. Still it's peak time for now. Hope to test things out later on (already tried RWIN changes but this hasn't done anything).
Going back to the router, if we are on V1 of Sky's router, V2 is the newer Netgear/Sagem in testing, why the talk of a third version (V3)? Wouldn't this just cause more of a seperation between users if there are more classes of routers released?