I'm a bit disappointed at the lack of streaming from iCloud. How would it kill the carriers? People use Rhapsody and Napster and the carriers are fine. How is it different from streaming tons of Netflix? Obviously it will eat away your data plan, but really what's the difference? iCloud is cool without a doubt, but "it'll kill the carrier" is a pretty weak answer.
When i am on a good wifi connection I can download a song in 5-10 seconds. I don't see how that is much worse than streaming.