Google Music only available in the United States |About Google Music

Actually google music is currently available in united States.The store launches on the Web today at android.market.com, while Google Music's cloud service is based at music.google.com.
Google rolled its cloud service out to the whole U.S. today, lifting the invitation requirement and dispelling any notion that there would be a fee. Users can upload up to 20,000 of their own songs, which they can access from Web browsers and Android apps. In addition, they integrated it to Android Market, so that you can buy new music as well