Got a couple things to say. First of all, if you are a person who is really super serious about following the policies of every web site you visit, you live in Hungary and you want streaming music, you are hosed. I mean how crappy is that? I hopped over to Pandora the other day and it told me essentially, "Sorry, but not in your country." So I bopped over Spotify, feeling all continental and such, where it told me essentially, "Not in your country." Wow. Enter unblock-us.com. I'm not using that service, but someone with a lower rule following drive might.
So on to google music. It's not like Pandora. You actually upload your own music and then can play it back anywhere. Pretty sweet right? So here's one issue with it right off the bat. You don't get to effectively rate songs. You can give songs a thumbs up or a thumbs down - that's it. That is some weak sauce. Seriously. And thumbs down skips the song. If I didn't like it that much, it wouldn't be on my hard drive and I wouldn't have uploaded it. Frack. I need at least a 1-5 scale though I'd like 1-10 better. Then I can build playlists off that with some nuance. NUANCE google - do you hear me? No - but it's a beta (hah - it's from google and it's a beta) so I'll try shooting some feedback upward.
I'll give more info. on the service as I gain more experience using it.
Oh - they do give you music to add to your list for free. Just picked up a free song from Rise Against. AND - I've got two invites. You want one, get me a gmail address to send you an invite. Not in the US? Well there are ways - or suck it up and wait.