After trawling through some information on ADSL2+ from (SamKnows) I found the following : ADSL 2+ Expected Performance (Internode)
Am I right in extrapolating that if your distance from the exchange is over about 3300 metres then migrating from ADSL to ADSL2+ (FFTC) will make very little improvement?
Following on from that, given that most people who have poor speeds are on the edge of their exchange areas, does this mean that 'upgrading' to ADSL2+ will make no difference? If you are poor you stay poor...