A press release from AT&T today officially announced SlingPlayer iPhone app [US$29.99] would be supported by their 3G mobile broadband network.

Sling Media’s SlingPlayer Mobile app has been available over AT&T’s Wi-Fi network, and since December 2009 the provider has been testing the app over 3G in order to meet the demand of iPhone and SlingPlayer users.

“We’re delighted with AT&T’s decision to approve the SlingPlayer Mobile app on their 3G network,” said general manager and senior vice president at Sling Media, John Gilmore. “SlingPlayer Mobile on AT&T’s 3G network gives customers the best experience possible for watching their home TV while on the go.”

“Just as we’ve worked with Sling Media in this instance, we look forward to collaborating with other developers so that mobile customers can access a wider, more bandwidth-sensitive, and powerful range of applications in the future,” stated, president and CEO Ralph de la Vega, AT&T Mobility and Consumer Markets. “Collaboration with developers like Sling Media ensures that all apps are optimized for our 3G network to conserve wireless spectrum and reduce the risk that an app will cause such extreme levels of congestion that they disrupt the experience of other wireless customers. Our focus continues to be on delivering the nation’s most advanced mobile broadband experience and giving our customers the widest possible array of mobile applications.”