Update from Milton Keynes
The details of the latest meeting between Broadband for Milton Keynes and BT is now online and can be found here. As stated in the reports summary "there is no quick fix" which highlights the ongoing nature of things.
Milton Keynes may seem to have an unfair amount of resources devoted to its problems at present, but in time once the problems are identified and solutions deployed, similar solutions can then be deployed around the other black-spots in the UK. So if you are currently out of reach of ADSL, then it is worth keeping an eye on the Milton Keynes developments.
One interesting case arises from a customer known as 'Mr Happy', it appears this customer has ADSL, where all their neighbours are unable to. BT has re-iterated that the online checker is 98% accurate, though many would choose to contest this figure. The accurracy may vary though from exchange to exchange, and one oddity that often appears is where users have had ADSL for a year or two, and the checker has changed from a yes you can have ADSL, to a your line is too long message. The Broadband Action Group have had clarification of BT Wholesales actions on lines that are already connected but subsequently found to be out of limits...
For people who have lines that have gone out of limits for any reason this information is welcome news and reflects part of a sea change that ADSL and broadband are more of a core business now for BT.