I notice in the covering link for this topic there's an explanation of the naming process for the different versions of Ubuntu, but no explanation for the word 'ubuntu' itself. Ubuntu is an isiZulu and isiXhosa word of some complexity. It has lately been used for charitable, helpfulness, sharing, etc. It is actually more than that. It basically means: I am a man (Bantu) of people. What I do effects all humanity, therefor if I do good humanity will do good. If I help, humanity will help me. We must live for each other. We must draw together. Which is Mark Shuttleworth's vision for your desktop, working to unite other systems. Mark is a South African. Oh, almost forgot, happy birthday Ubuntu!