Not content to let Clear Channel's iheartradio smartphone app run uncontested in the smartphone space, CBS Radio has introduced its new Radio.com app for the iPhone.

The app offers streaming access to more than 200 music, news, sports and talk stations along with Internet radio offers from AOL Radio and Yahoo Music. It was initially released as an iPad app. Features include:

_ Background streaming: the new apps take full advantage of the ability to multitask and stream audio while playing games, checking email, or browsing the web

_Skip counter: for interactive stations programmed by AOL and Yahoo! Music where listeners have the option to skip songs, the new app tracks the users interaction with the music and lets them know when they've exceed the predetermined limit (six) per hour

_ Tag stations/songs as favorites, making it easier to recall your top-rated channels or purchase an individual tune for download

_ Share stations with friends through e-mail and social networking sites like Facebook and Twitter