This was published on BE's forums nearly a year ago, they have been conducting tests but where unhappy with BT's persistence of wanting to charge £120 for a second line installation. For the test subjects Be paid for this installation and will not comment any further (i have tried on their forums as i am a be user) until they have concluded their studies.
They are also suffering back bone problems at the moment that are pushed on their forums daily. The rate of growth for them has been so large since o2 bought them that they have struggled to keep up, often meaning dns servers keep going offline or speeds on some exchanges have become abysmal. I personally use openDNS and my exchange has suffered none of these problems so i have been very very happy with Be's service. But i thought i should let a few of you know that this year has seen them with a few teething issues but i also know they are updating things faster than light, i still think covering 17 million homes though for a company thats only a few years old and provides internet as promised. They are still advertising UNLIMITED as they provide unlimited, something many company's have had to remove due to false advertising.