BERKELEY, Calif. (MarketWatch) -- The latest thinking in the Silicon Valley scene regarding the Microsoft-Yahoo-Carl Icahn Saga, which is not going away, might be about some sort of killer patent owned by Yahoo. Right now financial researchers everywhere are trying to figure out what exactly the patent is. The blogosphere has been abuzz with various notions that the real reason Microsoft Corp. wants Yahoo Inc. has to do with a patent that Microsoft needs to implement its future money making philosophies. One of the hot articles with the most details regarding these possibilities is written by blogger-essayist Usman Latif, who...