The mobile music scene has become more competitive with the entrance of newcomers MOG, Rdio and mSpot. AP News reports that music blog site MOG and a startup called Rdio, backed by Skype co-founders Niklas Zennstrom and Janus Frilis, are both entering a market already served by Rhapsody International and Thumbplay. They will offer applications that work on iPhones, giving consumers access to millions of tracks for about US$10 a month. They will be competitive to Apple’s iTunes store. MOG also plans to launch on Google’s Android operating system. Meanwhile, according to an AFP report, mSpot yesterday launched to the public as a beta test on Android, giving users a way to store music they already have and stream it to themselves on mobile devices. It’s free for 2GB of music, or about 1,600 songs, and monthly fees are charged above that.

Competition in this sector is not likely to slow down. Apple is also expected to launch its own service for accessing music remotely, following the company’s purchase (and subsequent closure) of music startup Lala. Last week Hewlett-Packard acquired Seattle-based music streaming service Melodeo for a reported US$35 million. Other mobile music players include Spotify and Pandora. Google itself has also been linked to launch of its own service.