MTP Playlist Editor is a gtk gui based on libmtp for creating and editing playlists on a Media Transfer Protocol (MTP) device. PlayEdit is designed primarily for the Sansa View, but may work for other MTP devices supported by libmtp.

Sourceforge Project Info Site

Please check out the SourceForge Project Info site for MTP Playlist Editor:

There you can subscribe to the mailing list, and submit bugs and feature requests.