Spotify is still a work in progress in terms of design and rivaling iTunes extensive library but what it has done is simplify music access.
Spotify is available on every device possible, making music truly ubiquitous. You just turn on music (Spotify) when needed, as you do the nearest water faucet for water.
It’s all about reducing choices and unnecessary steps, narrowing clutter, and adding a touch of class to boot. (link)
Like Spotify, Square is a touch away for an instant mobile payment. Anyone can be a vendor. Instagram turns amateurs into neo-photographers. You can backup any file seamlessly into Dropbox. It’s iCloud done right. And the Day One App turns all computers and mobile devices into a life-streaming diary.
Keep it simple or prepare to be disrupted.