Today marks the successful end of the Google Music beta test, which means there's now no invitation needed to use the service if you live in the US.
Google Music, as you know, has been around in beta since May and allows users to store music on Google's servers and then stream it from any device (be that Android, iOS, or web browser), with no charge for up to 20,000 songs from your computer stored on the Google cloud.
And now the Android Market web page has been modified to include music sales of millions of songs in 320kbps MP3 format. A service called Antennae looks at what you like and attempts to suggest new content you might be interested in.
Everything you purchase in the Market is available for instant streaming and sharing via Google Plus (and perhaps other services), and anyone you share with will be able to receive a free full-play listen to what you purchased, saving the cost of a CD to burn them a screener copy. It's unclear to me whether it's a one-time play or if it can be listened to multiple times.
Users who sign up to Google Music get access to exclusive music from The Rolling Stones (6 full unreleased concerts), Coldplay (5-track live LP from Madrid), Busta Rhymes, Shakira, Pearl Jam, and Dave Matthews Band. If you're a GSM subscriber, there's a chance you can get some tracks by Drake and Maroon Five, depending on your carrier.Engadget]