How ironic is this? Greg Hines, president and CEO of Tm Bioscience Corp., zoomed down the Florida Interstate recently to the Lehman Brothers Global Healthcare Conference, in South Beach, where he’d been invited onto the podium alongside officials from Pfizer, Millennium Pharmaceuticals and Applied Biosystems--biotech behemoths to his $82-million operation. Yet only the day before, holding court from a Miami hotel room, Hines had revealed exceptionally positive fourth-quarter and year-end results to an eager telephone audience of...two.