Our sister site Engadget has a nice scoop this morning -- Google is testing a native iOS Google Music app internally at this time, and they'll launch that app for public consumption later this month. The app will highlight Google's Play Music All Access streaming service.
Engadget notes that users in more than 19 countries can sign up for the Standard and All Access music services for offline or streaming access. The iOS app will apparently echo the feature set of the Android app, which offers custom radio and smart recommendation features.
The All Access service has a US$9.99 monthly subscription fee associated with it, and there's a 30-day free trial as well as a non-subscription version of the service. The image at the top of this post shows the Android app running on both smartphone and tablet, and is not meant to represent the look of the upcoming iOS app.