Basically if you sign up with VODACOM between 1 May and 31 July 2011 you'll be able to secure this deal, including 7.2Mbps modem at R149 per month for 12 months. There is a catch: you get 2GB for use any time and another 2GB for use from midnight to 5am a month. If you don't intend to use the second 2GB batch, then this pricing is "as good as" the CELL C offering, so you can't really lose anyway.
If I've ever been an advocate recommending to you the Cell C 2GB deal, well now you can scratch that and go for the VODACOM deal instead!
A breakdown for the various competitors, courtesy of mybroadband.co.za's news post is below. I can't help but notice the "competitive Telkom pricing" ;-)
|2GB Mobile Data Contracts|
|Standard data||Extra data (after 00:00)||Modem||Price (p/m)||Cost/MB|
|Vodacom 2GB + 2GB||2GB||2GB||7.2Mbps||R149||R0.036 - R0.073|
|Cell C 2GB||2GB||--||7.2Mbps||R149||R0.073|