For those using Rdio on iOS devices, today's update adds two new functions to the software for Apple's mobile gadgets. First, users can edit playlists from the app on an iPhone or iPod touch without having to log in on the desktop in order to do so. The curation feature allows for the usual addition, removal and rearranging of tracks while also including custom artwork, visibility and collaboration settings. Fancy typing out those music critiques while they're fresh in your mind? Well, the latest version allows for composing on that mobile device plus the ability to peruse reviews from the pros and fellow Rdio listeners -- a feature that popped up on Android last week. It's time to stop procrastinating and start compiling that Yacht Rock playlist, you guys.