All the new Google Play Apps except the most wanted by everyone, the Google Play Store App, are out and available for download in the android market.. err… Google Play Store.
One thing though, these apps — Google Play Books, Google Play Music and Google Play Movies – aren’t available around the globe yet, which should happen real soon along with the Google Play Store app.
For now, you can go to this link and see if the apps install for you. It is probably working fine for US and UK users. Do tell if this work our for you in comments.