I beleive it is true, but I used to work for BT broadband, and the strength of your connection is determined by your distance from phone excahnge, at most around 8mb, most people get 2,3 or4 in populated areas, if you live in the middle of nowhere, you'll be lucky to get a 2meg connection,
With that in mind SKY are currently only able to offer this service to 23% of customers at the moment, If you are one of the lucky 23% then hooray for you! if not you'll have to wait a few months for the improvments depending on where you live...
hope this help..J