4 of em.

Supposedly good only within the US of A, but I've heard some folks outside its borders report success.

T&C say free for a limited time, implying it'll cost money later, but doesn't say when. You can't copy music out, that I've found. Accessible from "any computer, as well as up to 8 devices."

I have a few, too. One went to my wife but the others are available

2 left...

Yes, Google Music page does not even load here:

"We're sorry. Music Beta is currently only available in the United States".

I'm in Australia and get the same message as Taym but tried it on my US company's VPN and it lets me in to request an invite. However I assume that unless I always access it from that VPN (or any other one that gives me a US based IP) it won't actually work.

Maybe, maybe not. After all, once it's added to my account, I'd expect access to my music if I were traveling. If you want to try, I still have an invite.

Ok I'll give it a go. I have clicked the "request invite" button. I assume I can still accept an invite from someone else. I'll PM you my email. Thanks.

To report back, thanks to Ammon I was able to set up an account in Australia. PM me if anyone wants an invite.

It didn't work initially so I changed some basic settings about my location in one Gmail account. It was then possible to send the invite. I then had to activate the account from a US IP address via my company VPN.

Strangely the first account we tried didn't work but I was able to send an invite from the second account to the first and it worked fine.