[Tamerlin]

Though some of Apple's acquisitions fit that description (Nothing Real and eMagic -- though it seems like they managed to kill off Nothing Real, which is sad), they've also bought a few companies that didn't have any products at all, like Raycer Graphics and... I can't think of the name of that PPC design firm they bought. They had products that sounded promising, but didn't exist yet... same with Raycer.