Music Unlimited: Sony has decided to unleash its music catalog on mobile-using audiophiles, with the launch of its new Music Unlimited service for iPhone. It offers two subscription options: The $4-a-month service offers Pandora-style listening to ad-free music channels that span a range of genres and moods; the $10-a-month "premium" lets users play any song or album on demand, Spotify-style, while letting them create and edit playlists to further customize listening. New customers can try out the service free for 30 days.
Yahoo TimeTraveler: No, unfortunately, this is not an app that lets you fly back and forth through the centuries like Inspector Spacetime. But Yahoo TimeTraveler, a free iPhone offering, offers some nifty features of its own—helping users plan their itineraries for trips in 29 major cities around the world. Input your start location and end location and the app will provide up to 10 hours of sites and experiences to enjoy along the way. Plans can be shared to Facebook or Twitter, and multiple plans can be created in the city of your choice.