I know Google Music is already out in the US, but when will it be available in the UK? And will it be available on Android at the same time?
When is Google Music released in the UK?
android;google music
Official Google Play Help Page explains it as follows:Q: What is Google Play?  A: Google Play is a new digital content  experience from Google where you can find your favorite music,  movies, books, and Android apps and games.Q: When will I get Google Play? What markets is this available in?  A: Well be rolling out Google Play globally starting today. On the  web, Google Play will be live today. On devices, it will take a few  days for the Android Market app to update to the Google Play Store  app. The music, books and movies apps will also receive an update  today.Around the globe, Google Play will include Android apps and games. In  countries where we have already launched music, books or movies, you  will see those categories available in Google Play, too.Q: I live outside the US. When will I get the books, music or movies verticals? I only see Android apps and games?   A: We want to bring  different content categories to as many countries as possible. Weve  already launched movies and books in several countries outside the  U.S. and will continue to do so overtime, but we dont have a  specific timeline to share.Q: What types of content are available in my country?  Paid Apps: Available in these countriesMovies: Available in US, UK, Canada, and JapaneBooks: Available in US, UK, Canada, and AustraliaMusic: Available in USYou may check out the link for more info.