Yesterday was Google, tomorrow is Microsoft -- stuck in the middle? Apple. The unholy trinity of tech are going back-to-back-to-back with their quarterly earnings reports and Cupertino, faced with a steeply declining stock price, posted $54.5 billion in revenue -- just shy of Wall Street estimates. Still, that represents a record quarter for the company which has been rumored to be facing diminished demand for its flagship iPhone. While it may be a while 'til we know for sure if demand for the handset is tapering off, we can report that the 47.8 million iPhon