So guys... Google Music has now moved on from its Beta phase and is now open to anyone in the United States. So basically everything above with regards to a VPN etc apply, however you no longer need an invite to join in on it. No redundancy capabilities to my knowledge either... It may not be a 'feature' as such, but remember that nearly everything you load onto Google is bound to be backed up in some form of an array, so even though I wouldn't completely trust it as such, you can be reasonably sure that your data isn't going to disappear on you that easily. Like SteveAndBelle said, this isn't entirely for everyone but you have to remember that it isn't just limited in use to your portable audio devices. Just think of the convenience of having your entire music collection anywhere that has internet access. For example, you turn up to a friend's place. You want to listen to your music there. Without bringing anything with you, you can simply go to their computer and access your collection.