Windows 7: Microsoft needs to learn how to speak Apple and Android

Five years ago, Microsoft might have been justified in assuming that every visitor to its web site was running Windows. In 2011, that assumption is just unrealistic. Yes, Windows still commands an overwhelming share of the market for desktop and portable PCs, but these days people get information from other places, like iPads and Android smartphones and MacBook Pros. None of those devices are running Microsoft operating systems.