Stitcher is already a heavy hitter in the world of mobile apps, but users will now find their favorite radio shows and podcasts are accessible from the desktop. Today, the company announced an HTML5 version of its popular app that's optimized for all of the major browsers. Upon login, Stitcher users will discover their existing favorites for on-demand listening, playback controls at the bottom of the screen, along with Stitcher's discovery and sharing tools. While still in beta, the service is integrated between the desktop and mobile platforms, which lets users resume listening from wherever they left off, regard