@ wytco0,
Just to add a bit more to Ronski's excellent answer; the fact that you are provided with the date of March 2014 is good news, at least in part.
It's as near as you'll get to a guarantee that you will
eventually get a VDSL FTTC service, but it's quite possible that the date will slip initially by three months and then possibly by one month every month until suddenly you will see "Available". On the other hand you may be lucky and get an available date slightly earlier.
Another clue will be provided when you see larger BT Openreach vans pulling the empty sub duct into the sections between road or pavement covers. These sections are then connected with joiners similar to garden hose joiners. After that you will probably see another group blowing the fibre into the subduct. E.g.
http://www.ewhurst-broadband.org.uk/?p=2846Finally you will often see a single BT van parked for several hours making off a fibre joint.
We also have single cabinets in that condition too, but we have others where the FTTCabinet is installed but no forecast date is entered. In these conditions, the cabinet itself may well be finished but it lacks the vital fibre cable to a working distribution node (or aggregation point as BT sometimes call it). We assume that the date will be after March 2014 which is as far as BT seem to predict at present.
Lastly I do not believe that BT will ever interconnect two PCPs to provide VDSL services to both. Apart from the significant work involved FTTC's don't usually have even the capacity to provide for anywhere near the full compliment of twisted pairs in one PCP. In any case you would not expect anywhere near 100% take-up (unless you are in Lancashire in the B4RN.org.uk area where they have already had a few areas at over 90% take-up).
Kind regards,
Walter