That sentence doesn't even make sense. If the UK Pound had dropped
double its value it would now be -£1 to $2
25-30% drop against most currencies since 2007, but with the British economy growing again and the BoE no longer diluting the currency via quantitative easing the Pound is more likely to rise against Euro and Dollar than to fall. I have a feeling here that Apple are treating the Pound as symbiotic to the Euro in the same way the Danish Kroner is, when this simply isn't the case.
If Apple reflect this pricing structure across the Mac range as they update models they'll have to start closing UK Apple Stores. Brits have woken up to being ripped off over the years. We no longer put up with it.