Sorry this line doesn't work for me. Previously I worked on Mifos, an open-source microfinance accounting system, and worked for Kiva.org, a microfinance broker. I have at least a passing familiarity with the financial needs in the third world.

I don't see Bitcoin as doing much there. The peer-to-peer aspect requires computing and connectivity requirements most people don't have. What has had mild uptake is new online financial institutions that use Bitcoin. But I don't see any real advantage there. Compare instead with M-Pesa, which has over approximately the same period gained millions and millions of users.