Apple has launched http://www.icould.com just minutes ago. It looks like they were able to include the mirroring feature Google was unable to include in Google Music Beta. Still, GMB is currently free (although it's not expected to stay that way). Apple's cloud is only $25/year - but I don't imagine it'll work well for me considering iTunes is the only apple product I use. My Android phone now has access to over 10k songs via GMB. Steve Jobs poked fun at Google a couple of times mentioning that it would take weeks to upload all of your music (which is true, it's taken me about 2 weeks), still it's well worth it. It works in the background, so I don't notice it at all. What do you think? Who will win the battle for the cloud?
