Zune included a line of portable media players, digital media player software for Windows PCs, a music subscription service known as a "Zune Music Pass", music and video streaming services for the Xbox 360 game console via the Zune Software, music, TV and movie sales, and desktop sync software for Windows Phone.
Zune also provided music streaming for United Airlines inflight after a partnership in 2010.
Perhaps you use Windows Media Player or a different desktop application and have been looking for an alternative?
And Redmond has turned on the afterburners in the past year, releasing a string of quality business-focused apps. Being a Mac user doesn't mean that you have to turn your back completely on the Windows ecosystem.
As Zune is free, and necessary for Windows Phone users, it is a sensible option to take, especially as a replacement for Windows Media Player.
It is also very easy to use, and beautifully designed, featuring a version of the Metro UI that can be found on Xbox 360 and Windows Phone.
The fiercely competitive software giant is positioning its wares for cloud computing with software and services.
The company's two cash cows - operating systems and the Office productivity suite - are performing well.