Good old Apple. They're incredibly conscientious about all things tax-related, so now that VAT is deducted based on the customer's region (not Apple's Luxembourg HQ) due to new EU legislation, they've hiked the minimum price to compensate. How nice of them.
The minimum price for paid iOS games and apps is now 79p, not 69p, with prices retroactively increased across the board. "These changes are being made to account for adjustments in value-added tax (VAT) rates and foreign exchange rates," apparently.
Still, it's hardly going to break the bank -- and there's a case to be made that mobile games have become seriously devalued over the last few years, partly contributing to a slump in creative risks and overall quality. Either way, consider yourself forewarned.