Well - today (Friday) has had an interesting start.

On my (infrequent) check wih BT's Broadband checker, my line now apparently has the 100mbps service available. It would seem that super-fast broadband has gone live in Forest Hill.

It offers a mix of BT Infinity 100 Package with guaranteed 100 mbps download and 15mbps upload speeds and BT Infinity Packages with 40 mbps download and 10mbps or 2 mbps upload speeds. It is noteworthy that BT are playing loose with their use of terminology by labelling these speeds as "Mb" - an entirely different metric from "mbps". Also noteworthy is BT's slippage of the declared package speed from 110 mbps to 100 mbps.

As Newforester stated Option 3 is the BT Infinity 100 Package priced at £35 pcm - but line charges are not included.

BT Infinity Option 2 (40 down/10 up) is priced at £28 (for approximately the next 2 weeks) rising to £29.40 pcm and line charges are not included.

BT Infinity Option 1 (40 down/2 up) is priced at £18 and once more line charges are not included. This option is the ony one with a 40Gb download limit.

During the process BT advised that a free pre-installation survey would be necessary on my premises and that a £6 fee would be required to cover the delivery of the new BT Homehub.

Analysis of these newly revised prices reveal two facts - the much vaunted £28 pcm rate applies only to the 40 mbps option and does not include line rental - which rises to £13.40 pcm in December and that on a like-for-like comparison with my last bill, Option 3 represents a 42.15% increase.

Both facts will be seen to be major disappointments - but I am sure some will write this significant premium off to being the price of progress.

There is no mention of BTs publicly promised increase from 100 to 300 mbps scheduled for January 2012 and whether this will have a price impact.

For SEN the speeds on my (as yet non-Infinity) line have been fluctuating between 5.5 and 13 mbps this month as well - but BT have assured me it has nothing to do with the fibre optic build.