For what it's worth, that bit about unlimited data plans isn't entirely true. The standard iPhone voice and data plans from Vodacom in South Africa bundle only

For what it's worth, that bit about unlimited data plans isn't entirely true. The standard iPhone voice and data plans from Vodacom in South Africa bundle only 250Mb of data, while I'm fairly sure that Rogers in Canada and Vodafone in Australia don't sell the iPhone with unlimited data plans, at least not on all contracts.