Looks like they should update their page on digital currencies, seeing as how they are playing with one themselves.
http://www.bankofengland.co.uk/banknotes/Pages/digitalcurrencies/default.aspx


There's been a bit of writing lately regarding the so called RSCoin, I particularly like a few lines from the last link:

We understand this to mean that their official reason for exploring their own coin has been based on providing cheaper transaction costs (for who, the consumer or them?) While also, conveniently controlling the flow of the entire network themselves.

https://www.cryptocoinsnews.com/bank-of-englands-rscoin-a-hybrid-digital-currency-to-improve-global-trade/
http://www.thedailynewsgrabber.com/bank-of-england-entering-the-cryptocurrency-market/