Shazam has linked out to Rdio for a while now, but the tune-identification app would boot you out to access a full track. With a recent update though, the software now streams songs it identifies from Rdio's library from within, so long as you have a subscription. Those who have yet to pay up will still get a preview, but selecting the aforementioned repository from the listening options will only prompt you to download its app. Those who do shell out the monthly fee need only to link the two apps in order to take advantage. Shazamed tracks are automatically sorted inside their own playlist for later access, while an "Add to Playlist" button lets you chose more appropriate destinations. While the iOS version is available now, folks who carry Android devices can expect it to arrive "in the next few days."