Sony has officially launched it's own music streaming service called Music Unlimited, powered by Qriocity, and available now in the U.S., Australia and New Zealand. Their aim is to challenge Apple's iTunes dominance by providing a service that is available across a myriad of devices such as Playstation 3, Blu-Ray players, Bravia televisions and computers. They also plan on adding an app for Google's Android operating system so they can get into the smartphone scene as well. The pricing will start at as low as $3.99 per month and they plan on rolling it out to more countries this year.