fringsters listen up, I have great news for you!
Vodacom has just finished upgrading a huge section of their network (more than 3300 towers across South Africa) to support 14.4 Mbps Internet speeds. As for the rest of the network you guys will have to make due with the speeds of up to 7.2 Mbps on 3G. The great news is that with speeds of between 7.2 and 14.4 Mbps fring calling and video stream quality on the Vodacom network will be vastly better than on other local networks 
A little birdy tells me that Vodacom is also testing 21.1 Mbps HSPA services on their network but this will only go live laters. So it looks like there are only good things to come. Watch this space for progress.
Vodacom 14.4 Mbps internet goes live on 1 May 2010