Google's been teasing cloud-based music features in Android since its I/O conference last year, and the recent leak of a revamped first-party Music app suggests that the plans haven't evaporated into thin air. Here's the latest tidbit: GizmoFusion claims that this screen shot comes from a device running Gingerbread, clearly showing "Music" as one of the accounts configured in Android's settings, which suggests that the system will be pretty deeply-i