OK; the e-mail came through three days before the BT Wholesale checker was updated (a bit of inside knowledge perhaps).
FTTC has now been enabled 4 weeks early (OK; not really 'early' as it should have been last December).
Despite my better judgement I've now placed an order for a new phone line (currently F.O.C) and BT Infinity.
Connection appointment is 1 to 6pm on Monday August 22nd (hope I don't have to cancel it due to a sudden trip away).
So here's hoping BT Infinity doesn't turn out to be a crock of poo.
What have I done? Still; at least with a new line install I can leave my BE connection in place on the old 'phone line until I'm happy Infinity won't be throttled to death.
ADSL2+ with BE
DL Sync around 4.8Mbps
UL Sync 1088kbps
DG834GT with DGTeam firmware