You have no understanding of the third-world.
A funny thing about the internet is you never really know who you are talking to. I've lived in the third world for a decade, so I would say I have a fairly good understanding of what daily life looks like.
Posting Intersango / Bitcoinica blog spam about what they imagine the future to be, isn't going to change the fact that, at present there is little for poor africans to spend their bitcoins on, hence no real market demand for it.
I'm not here to rain on your parade, I mean are you actively working on porting the client to work on low-memory / low-cpu devices? Or are you just advocating that "someone else" do it.....because if its the later, my answer is: I'm not interested.