While South Africa does have broadband access, most people sit on sub 3GB caps. The actual broadband penetration is also low - 2% for fixed line, and 11% for mobile access. The mobile broadband (3g) is metered per mb and frequently drops down to edge. It is improving, but as with the rest of the developing world, if you want to actually target most users you need to use SMS or very basic html sites that can work on older S40 Nokia phones and blackberries.

Obviously a fancy desktop sized page that relies on java script is just completely out.