This column highlights the most interesting business and financial commentary on technology every day.   VentureBeat Link: Microsoft Unveils Comprehensive Xbox Music Service Including Free Streaming On Windows 8 “Microsoft’s (NASDAQ:MSFT) Zune music service and players utterly failed to steal market share from Apple’s (NASDAQ:AAPL) iTunes and iOS devices. But the Redmond Wash.-based software giant is trying again today with the unveiling of the Xbox Music service for Windows 8. “With this new service Microsoft has learned the lessons of Pandora (NASDAQ:P) and Spotify which have gotten traction with their free music offerings. Microsoft will have a free version ...