Spoke:
I am only attempting to be factual with my comparison because without an FPGA or ASSP, the comparisons can not be apples to apples.
But at least on paper 10% faster speeds (up and down 50/50) or 100% faster downstream and 1000 additional feet would give the telcos at least 25% more reach and the ability to deliver IPTV (cable TV).
At 4,000 feet Embarq could be much faster given that it is faster at 1000 additional feet. But 4,000 feet is not the true requirement.
From what I have read, the need is for 5-6 thousand feet with the fastest possible speed (at least 25 mbits).
Real world results for VDSL2 do not support the requirement and that is why fiber is being brought closer to homes at enormous cost to the telcos.
Embarq may or may not be embraced, but there is a need for a faster chip with better reach than VDSL2.
I also read that the telco(s) have asked Stanford University for assistance with reach and speed. You should know that is the place where DMT was invented.