One thing I've found interesting that I'd love to see explored in depth, is the lack of interplay between the tech used in US/Western Europe (traditional tech hubs) and Africa. It seems the apps that are important to one market are not the same that matter in another - even in similar sectors (e.g. Square vs MPesa) perhaps this is because one set of apps targets smartphones and fast internet connections (not to mention processors) while another is targeted at feature phones. As smartphones reach higher levels of adoption I'd love to see African built apps taking on Western markets.