The Beatles are timeless and so is music and enterprise software. There's been an ongoing innovation in the music services. iTunes with iPods disrupted the traditional CD business model and in the ever connected cloud world Pandora, Spotify and countless others are challenging the very concept of "owning" music. Spotify gives you access to a wide range of music on all their clients as long as you're a paid subscriber. This is like Netlfix model for music except that there's no ad-supported free Netflix (Spotify is rumored to cap the free version after six months of usage). Pandora also has a similar model but it's a "radio" service. You can't tell Pandora what exactly to play but give preferences and it will find, play, and tune music based on your preference. Pandora is serendipitous and Spotify is spontaneous. One of the challenges with these services is that you only have access to music as long as you pay for it. When you stop using it you do...