Walkman owners now have the ability to transfer any song from Sony's 10 million-track Music Unlimited library to their device with no restrictions, as often as possible.
The only caveat is one must be a premium member (free 30-day trial) of the service, which normally costs $9.99 a month.
The no-advertisement Music Unlimited is available for the NWZ-A860, NWZ-S760, and NWZ-E460 series personal multimedia players.
The update adds two modes: Channels and My Library. Content for both of these features is loaded through offline sync with a PC, meaning that you cannot access either wirelessly. It is not as bad as it sounds, though. Users can like and dislike songs so they do not hear them again next time they synchronize content.
There is a healthy channel selection for basic (and more for premium) members, which can be synced individually. For example, someone could choose Alternative, the 60's, and a few other genres and transfer the entire content of that channel to their Walkman.
To install the cloud-based streaming player, just update the Walkman to the latest firmware via the Music Unlimited Transfer application.