Since our trip to Africa was a family vacation and I really didn’t want business to intrude I wound up not spending time with startups in Nairobi. But I did talk to a lot of people we encountered about their use of technology. Mobile communication is almost everywhere. Only when we went into more remote Samburu territory did we not have a cell signal. Many people are still using feature phones but Android is making rapid headway. An iPhone is considered to be a real luxury item and very few p...