Most... so far, I've seen the Beatles catalog won't be available to stream...there will likely be a few other artists who's deals with Apple will exclude streaming...So if I'm paying 9.99 a month, I'll be able to stream ANY song that's in the iTunes Store?
But streaming isn't downloading, right? I'm having a hard time understanding what the difference between "off line" playing and downloading is. Do I have to buy an album to download it? What do I get with off-line capabilities?