The Docudesk PRS Browser allows Macintosh users to easily manage content on the Sony Reader using a native OS X interface.
Both internal and card memory locations are supported, and all natively-supported file types can be added and removed from the Reader (txt, lrf, pdf, rtf, bmp, gif, jpg, png, mp3, and aac) with simple drag and drop operations. You can even copy files from your Reader to a local drive.
This project is based on the ReaderFS file system for OSX. Special thanks to the author, Scott Turner, for his contributions. The PRS Browser is released under the GNU General Public License (GPL).