Most of them look like Nigerian versions of existing sites. Nothing particularly new.
I'm sure you saw the piece in NYT about how web companies are shifting focus to the profitable “Western” markets. http://tinyurl.com/cv8eoz The gaps that open up will be filled by local start-ups. Interesting times ahead!
I hadn't seen that article, thanks. The point of it really seems to be that video sharing sites find it expensive to deliver to developing markets.