Episode 6 of SA’s business technology podcast, TalkCentral, is now available for download. This week, your hosts Duncan McLeod and Candice Jones reflect on Gareth Knight’s superb Tech4Africa conference. We also talk about Andile Ngcaba’s fibre network roll-out plan, Steve Song and the Mesh Potato project, Justin Spratt’s appointment as managing partner at Quirk eMarketing, the corruption allegations involving department of home affairs officials and Lefatshe Technology, Neotel’s launch of prepaid services