"Apple Inc., the computer maker turned mobile gadgeteer, overtook Microsoft Corp. to become the most valuable technology company on optimism it can keep adding customers for its iPhone, Macintosh computer and iPad," writes Bloomberg here.

At the close of Nasdaq stock trading today, "Apple's market value was at $222.1 billion, higher than Microsoft's $219.2 billion," making Apple "the second-largest U.S. stock by market value, behind oil company Exxon Mobil Corp., valued at $278.6 billion on the New York Stock Exchange."

Does that mean Apple's highly-proprietary, high-margin business model beats Microsoft's high-volume, market-domination approach?