A&A has been using BT Wholesale based products since the beginning and recently started offering Be Wholesale based products.
TalkTalk have started enabling exchanges in rural areas such as Lincolnshire that BT currently won't touch with a barge pole; they provide wholesale offerings to other ISPs and the bandwidth works out cheaper than BT's 20CN pricing - the benefit to the end user is that they can order ADSL2+ services (up to 24Mbps) rather than plain ol' 20CN ADSL1 services (up to 20Mbps).
So how about it chaps ?