If Microsoft's $44.6 billion Yahoo bid tells us anything, it's that Vista doesn't matter. But some in Redmond have not gotten the memo: "New customers should feel great about buying Windows Vista today," blogs Microsoft executive Mike Nash. The source of his optimism? Windows Vista Service Pack 1 has been released to manufacturing, beginning Microsoft's arduous, 20th-century industrial process of a software rollout. Nash's main concern is that the news might stop users from buying Vista. He shouldn't be worried.