IIS has released an update to gMusic, its unofficial Google Music player for iOS adding support for offline listening, playlist editing and more. gMusic is a native iOS app for the Google Music service allowing users to listen to their cloud-based Google Music library streamed to their iPhone, iPad or iPod touch. Although Google Music can be accessed via an HTML 5 web app in the Safari browser on the iPhone and iPod touch, gMusic provides additional features that only a native app can provide such as “Now Playing” lock screen integration on iOS 5 and offline support. The latest update, gMusic 1.5 adds a new offline mode and the ability to edit playlists directly from within the app and also introduces support for the “Thumbs up” feature for rating tracks in a user’s Google Music library. Several UI enhancements have also been added including support for portrait view on the iPad, a new album view and more. gMusic 1.5 is a universal app requiring iOS 4.1 or later and is available from the App Store for $2.