Leaked photos of the Android operating system shows the 'Sync Music'. It's just not known Android version that supports this feature. When the Gingerbread seem less fitting, considering that Android is already circulating and not found these features.
The biggest possibility is version 2.4 Ice Cream or even a version that will come later. In fact, this could be a special feature attached to the tablet-based Honeycomb (3.).
To be sure, Google is currently preparing for cloud-based music service. So, just waiting for the time course of this feature can we meet and active.