The recently dispatched rumor du jour that Microsoft CEO Steve Ballmer would appear onstage at the Apple Worldwide Developer Conference has been supplanted by new speculation. Actually make that new, old speculation: Apple is going to replace Google as its default search engine for the iPhone with Microsoft's Bing: So goes the latest theory from TechCrunch and it's a notion that settles in my stomach like last night's leftover refried beans. Oh, the stupid.... it burns!