Anyone who has watched Robert Mugabe this year, as the 84-year-old dictator of almost three decades railed against colonial phantoms while stealing an election, ruining the economy and starving his people, might be tempted to take Zimbabwe as the story of Africa. But if Mugabe is the most famous living example of an African tyrant, evidence of a very different Africa has never been far away. Botswana, which shares a border with Zimbabwe, has for decades been mainland Africa's brightest star, a country that has gone from dustbowl poverty to middle income status in a generation, where elections are peaceful, politicians retire voluntarily, civil society is vibrant and where natural resources (in Bostwana's case, diamonds) are not a curse or a spur to corruption and violent theft, but a blessing shared by all. On Monday, that achievement was recognized when the Mo Ibrahim Foundation awarded its annual good governance prize to Festus Mogae, who retired this year after two five-year