SIRIUS Satellite Radio announces a new portable MP3 player with Satellite Radio Tuner called Sirius S50.

The Sirius S50 allows users to capture and store up to 50 hours of SIRIUS content, or a mix of SIRIUS programming and MP3/WMA files, enabling listening on the go.
The SIRIUS S50 measures 1.9 by 3.9 inches and 0.7 inches thick, and includes a full color display and voice-assisted channel navigation.
The portable satellite radio also includes 30 channel presets; a jump button for one-touch tuning to traffic and weather reports or to a favorite SIRIUS channel.
The Sirius S50 is smaller has better looks then the Delphi MyFi, but is not really comparable as it does not receive live Satellite music on the go, only when it is docked. The Sirius S50 is scheduled to be available at retail this October for a suggested retail price of $359.99.
More details in Sirius press-release.