Yeah, I also saw the article in print and did a double-take! It's worth noting that not only is the Telegraph a pretty serious paper, but it's political stance has historically been Conservative, unlike many of the more liberal UK papers that are covering Bitcoin (eg the Independent/the Guardian).
Great to see such an intelligent article in the mainstream UK press!
Conservatives (the members not the leadership who have no choice) who mostly support reduced Govt spending (not printing to pay bills) and others who actually know from History what the eventual effects of printing too much money lead to will have identified that a "crypto" with a finite supply will solve many of the issues they dont like about fiat. It is extremely likely that once they fully understand the function and application of Bitcoin style systems they will push their Party to to attempt to CREATE THEIR OWN NATIONAL CRYPTO Bitcoin clone. Prior to that they will probably further test the system by allowing bitcoin and others to freely trade in the UK where any flaws can be detected, monitored and remedied. Taxing transactions and collection will be near the top of the list. This is lower risk (politically and financially) for them and will wait until a near perfect system has been proven , tried and tested with widespread acceptance before they make their own move for the National.
There is no possible scenario that I can see that the altruistic hope of a single global currency will be accepted by any major Nation as if they cannot control they will be extremely terrified that another nation can (market manipulation of prices) and use it against their own National interests.
It should be noted though that inflation is a Government tool and a TAX which they may not wish to give up.
http://www.quebecoislibre.org/001028-11.htm
http://archive.lewrockwell.com/paul/paul334.html
https://www.google.com.ph/search?q=inflation+is+a+tax&ie=utf-8&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&gws_rd=cr&ei=QJWBUsPYLMaYkgX264D4BA