This looks like the final push for me to move everything over to Gmail, when I say move I mean redirect ;)
I have my email set up as following : various domains, with specific company names (as Lee D describes above) for email address (i.e. email@example.com, firstname.lastname@example.org). I then point these to my Talk21 email address, which actually goes to Yahoo! I still pay for POP3 access (pennies & using port 25) but I only use Yahoo! for occassionally logging into Flickr & occassionally to check my spam folder. To be fair, all my spam seems to get caught by the spam folder and IMO has actually improved recently (not sure if thats down to Yahoo! or other factors).
If BT are going to their own portal then I won't be going along, I don't need *another* portal to log in to just check my email when I don't use any of their other services.