These speculative estimates of R5000 are hopelessly naive.
Even the iMate k-jam (precursor to the HTC range in SA) when it was 1st released was over R8000 out of contract.
Bear in mind that AFAIK you don't get an iPhone for free with a contract - you still pay the full price to Apple AND you have to sign a contract.
Slap on top of all of that the fact that Apple gear is notoriously expensive (if I say overpriced its likely to start a mini war) and you may be in the right ballpark in terms of price - remember also that the current prices are for the current model NOT the 3G / lightsaber new model, which is likely to be a good deal more expensive.
I sincerely hope I am wrong but I think that the iPhone will be restrictively expensive when it comes out in SA and dont expect unlimited data from any network in this country ,what are you? A n00b?
EDIT: Last time I checked, T-Mobile in Germany is the only place to get an unlocked (legal) iPhone, it sells for 999 Euro - thats R12,228.
Umm ...yea.