Strange as it sounds but yes the Government of Argentina has blocked the sales of the iPhone and BlackBerry devices in Argentina. iPhone and BlackBerry together make up for almost 60 percent of the smartphone market in Argentina.A report at Manuals.WS says:

The Argentinian Government have took some measures to reduce the inflation level andВ strengthen the Pesos / US dollar currency parity. One of them was to block the sales of certainВ electronics temporary, among them iPhone and BlackBerry phones.

The trick is in order to continue there sales in Argentina, Apple and BlackBerry must build plants in Argentina, a move that companies like Nokia, Samsung, Motorola and LG already made. Apple and BlackBerry have no such plans as of now and it seems that the Argentinian Government doesn’t care about this