Rogue Amoeba has released Pulsar 2 (http://www.rogueamoeba.com/pulsar/), an update to the XM and SIRIUS desktop client for Mac OS X. The app now enables users to pause live radio.

If a song comes on you don’t like, use the handy Next Song command to skip right past it. Missed the name of a band? Jump backwards to hear the DJ again. With buffered audio, you’re in control.

With Pulsar, satellite radio subscribers can get their audio on the Mac with no hardware or web browser required. Version 2 also brings several other improvements. Favorites are now accessible from Pulsar’s mini-player, and they can be re-sorted via drag-and-drop in the main Favorites view, to get just the order desired. Pulsar now features Growl integration, to make the currently playing song visible in any application. Track titles can now also be sent to Last.fm, automatically.

Pulsar 2 is US$20 for new users and a free update for all Pulsar 1 users. For a limited time, a complimentary Pulsar license can also be obtained by all owners of any current Rogue Amoeba product for Mac OS X.

Pulsar 2.0 requires Mac OS X 10.5 or higher. A demo is available for download.