Stitcher, a free audio news application for the iPhone, has forged new partnerships with a slew of media outlets to substantially add to its offering.

Now, Stitcher subscribers can access content from Newsweek, The Wall Street Journal Radio Network, Fox News Radio, Air America Media, Politico, IGN.com, TechCrunch, Quick and Dirty Tips and AOL Weblogs including Engadget, Switched, The Unofficial Apple Weblog and Joystiq, along with their current favorites Stitcher content.

Subscribers can "stitch" their favorite programs into custom, on-demand channels. Stitcher content gets updated automatically without users needing to connect to a computer or take the time to synch it up.

Although it's currently only available for the iPhone, Stitcher plans to launch a version for the BlackBerry Curve 8310, Bold and Storm.