Depends how you define Broadband, but yes I can see a big decline in dial-up. Ntl have doubled the speed of their basic cable offer (upgrading was starting today) so 300k for 17.99 a month is not a bad deal in my opinion. Not fast enough for mega-downloading but perfectly adequate for general surfing.
As for BT....One of my work colleagues tells me he has a 2meg connection with BT. How on earth did they manage that? It only seems like 2 minutes since people were shaking their heads at the thought of achieving 512k via the BT network.