Preview at WWDC likely in June, followed by September launch.
Apple Says App Store, iTunes, and Some Other Services Experiencing 'Intermittent Issues' [Resolved]
The issues began shortly before 11 a.m. Pacific Time on Thursday, according to Apple. During this time, some iPhone, iPad, Mac, and Apple TV users may be unable to access the handful of Apple services listed below.
• App Store
• Apple Music
• iTunes in the Cloud
• iTunes Store
• iTunes U
• Mac App Store
• Volume Purchase Program
Update: Apple has updated its System Status page to indicate that the intermittent issues are now resolved.