Nicholas Negroponte, the nutty MIT professor who has championed the idea of cheap laptops for Third World children, is feuding with his own programmers. Negroponte's One Laptop Per Child is best known for its distinctive hardware — the candy-colored, devil-horn-antennaed XO notebook computer. But he's turned his attention to Sugar, the Linux-based software which runs on the XO. Negroponte, cozying up to Microsoft, wants Sugar to be rewritten for Windows. Great idea, says OLPC developer C. Scott Ananian — hire 10 Windows developers right away, suspend all other software development, and maybe it will happen.