???The Peachfuzz Billionaires??? is Steven Levy???s clever description of the new entrepreneurs of generation Y. So does that ???Y??? refer to the male chromosome? Because if all young ???geniuses??? have peachfuzz, then Levy must actually be talking about the XY half of the generation. Levy talks about ???young people??? and ???passionate entrepreneurs in their 20s??? and he names names, all of which sound like Kevin, Mark and Max. He promises that ???there???s never been a better time to be young, technical and working a Silicon Valley start-up,??? but he is more honest than most when he reminds us that what really counts is (in his tame euphemism) facial hair.