Msnbc.com now has a dedicated iPhone app, powered by Zumobi

Zumobi keeps pumping new apps to the Apple (NSDQ: AAPL) AppStore. Their latest work is the Msnbc.com iPhone application which, like Zumobi’s earlier apps, is available as a free download to the end users. As you can guess for yourself, the Msnbc.com for iPhone offers access to breaking news, videos, photos, and more from msnbc.com. The content also includes NBC News, MSNBC Cable shows, blogs and even Twitter streams from favorite NBC News and MSNBC Cable anchors.

The application comes with they call the “radial interface,” inspired by NBC logo, that allows for easy navigation by offering a “full view of the colorful menu so they can select what they want to explore.”

Finally, Zumobi seems all proud that the first advertiser is on board, right from the launch. It’s Best Buy which is featuring an “innovative mobile campaign” integrated directly in the app…