Recently BlackBerry introduced pricing tiers in BlackBerry World that finally take into account exchange rates. They started doing this with the British Pound (GPB) and Euro (EUR) currencies and now are ready to push onward. They announced new pricing tiers for India and South Africa after BlackBerry 10 just launched there. That means that the new prices in those countries will “reflect adjustments for updated foreign exchange rates, competitive benchmarking, consumer friendly price points, and taxes, where applicable”
Devs don’t need to do anything with the price change being automatic though devs can still set their own price tiers for different countries.