Prices will come down! It is impossible to stop prices from coming down. Mr Biggs and Co can watch and weep. This time, the human propensity for greed is on our side. There is absolutely no limit to the lengths people would go just to make money. If the big ISP's were to try to stay expensive, a plethora of small ISP's would rise up just to fill the void. Unless Telkom increases the line rental by a huge factor, prices will go down. I predict that on the 4th of July (today is June the 4th), I will get 2 times my 3G bandwidth for the same price and 3 times my adsl bandwidth for the same price. And that is just the beginning.
I don't know where you get your information, but those are very specific and optimistic predictions you are making there. I certainly hope that they come true for us all, but it almost sounds like you have some insider information. Is this the case?