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Yes, you've missed the point.  How easy is it for you to buy US $ in the UK?  It is an easy transaction currency once you have some.  Try starting an online business of some sort, and accept bitcoins.  That's what is needed more than a better ways to trade government fiat for bitcoins.
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Great idea, except for any business to succeed there needs to be cash flow. As long as I am unable to transfer BTC back to GBP the business wont last long