Bill Gates's third actOh, surely you didn't think Bill Gates would fade away into saintly obscurity after retiring from his day job at Microsoft, did you? Techflash reports he has a new company, a sort of think tank called BGC3. The letters stand, roughly, for "Bill Gates Catalyst". The three? Possibly a reference to the companies he's founded. Microsoft was Gates's first company; Corbis, the photo-licensing agency, his second. (Should we count the Bill and Melinda Gates Foundation, since it's a nonprofit.) BGC3 will house Gates's intellectual musings, with the resulting innovations to be funneled largely to Microsoft or to his foundation. It sounds a bit like former Microsoft research chief Nathan Myhrvold's Intellectual Ventures, minus the controversial accumulation of patents.