Heard from my friend, and I am not surprise.

Nowaday a lot of people use portable music player, eg ipod or any smart phone, and Spotify does not give free music streaming to these. In order for me to have the music portable, I either need to subscribe or download them myself. To subscribe with iPhone it costs GBP 9.99 per month, which is about 1.5 of the price of a proper album, how many people buy 1.5 album per month? If I do not want to subscribe and choose to download song for my portable music player, eg iTunes. If I have already downloaded it to my computer and my phone, why should I use Spotify? I think they should have it for free for portable and think about revenue somewhere else…

Ref: http://techpatio.com/2010/tech-news/spotify-2009-fiscal-results-streaming-users-2010-usa-launch