Apple released iTunes Match, a cloud-based system whereby a copy of your music is stored online, and is retrievable (and critically, streamable!) from any authenticated device. But, you need an American credit card to make it work. Major suckage :-(
PS. Now that I'm in the ranting mood, isn't it weird how Google and Samsung postpone a device launch event out of respect for the death of Steve Jobs, but Apple themselves choose to launch new software and hardware for the same date. Talk about poor taste.