And later this year 40-50mbps connections are being rolled out by BT, that should bump us up a little
Rubbish. BT's 21CN (21st Century Network) project is simply going to give ADSL2+ technology nationwide (ie: 24Mbit), something that BeThere already provide in exchanges they are present in with their own DSLAMs. BT are going to start trialling FTTH/N sometime in 2010, but even if they decide to roll it out nationwide it is going to take years. Virgin Media's network offers a glimpse of what is possible, but is crippled by traffic shaping and high prices for even a 50Mbit connection.
The UK's internet future, in fact the future anywhere, lies with FTTH - but it is expensive to implement, requiring government funding. Japan already uses FTTH and FTTN (FTTN provides their VDSL services for 50Mbit connections), which is why they're leaders in the broadband field. Thing is, Japan took the decision to replace the entire network (bombing in WWII removed big chunks of the old one), which has paid dividends. The UK is stuck with old, and rapidly degrading, twisted copper.
My uncle works for British Telecom, he said they've been using 1tbps for about
10 years now!
How do you think credit card payments get done so quickly (in restaurants and shops, etc)?
Does your uncle like talking out his rear end? The UK network uses "fat pipes" to provide the core connections (ie: out of the UK to the rest of the world, and key backbones), but even then they're not 1Tbit in speed. The overall bandwidth may be high, but this is done by multiple "pipes" rather than a single fast one. I spent a while working for Orange on the IP Network Design Team back in the early 2000s, and their connection to the UK backbone was via ATM 25Gbit lines, providing the entirety of internet access for their mobile phone (3G) network which was just being set up by us in Bristol. In 2000,
BT and Cisco joined to move the UK to a 250Gbit backbone (Colossus), which is still what we use today. So a quarter of 1Tbit in fact.
http://www.kitz.co.uk/adsl/equip2.htm
As for credit cards? The amount of data sent is tiny. Most terminals are connected via ISDN or even dialup, and there's a rise in terminals running off mobile phone networks too. Even a store like Tesco/Sainsburys wouldn't be able to saturate even a mediocre ADSL connection with card transactions.