This is a fantastic thing to do. I do have one question. Do you plan to do the same thing (maybe in a smaller scale) in the US? Say, help people in some impoverished area of the country with some small funding to help them get micro businesses going. Not arguing against the choice to do so in Africa (its great), just interested if there would be a push to do it "locally".
If you would like to lend to entrepreneurs in the US, I would recommend checking out Kiva Zip, which does lend to Americans as well as Kenyans. https://zip.kiva.org/