Microsoft's chair-hurling 800-pound gorilla slammed the door on talk of a renewed Yahoo acquisition deal at today's shareholder meeting in Bellevue, Washington. "We are done with all acquisition deals with Yahoo ... We did our best. We've moved on." In business, this often means: We'll be back. For now, though, Ballmer said he'd rather cut a deal to serve Live Search results to Yahoo users — as a vendor, not an owner. Why can he speak with such confidence? Because he's already snapped up Yahoo's key search engineers.

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