Samsung is taking on  Apple. Samsung says their music players are doing well in countries without iTunes. They hope offering a music service may bring them success in markets where the iPod+iTunes combo dominates. Logically speaking, it makes sense. But isn't it a bit late to enter the fray? As Steve Jobs pointed out , there are 200 million copies of iTunes in circulation.
But, there is something to be said for disrupters . If Samsung's service provides a different experience, with something unique that iTunes doesn't do (which isn't much these days), they will find an audience. No company's dominance is absolute--even golden apples can become rotten.