You can now add a description to a list. The resources for creating and updating a list via the API now supports a "description" parameter and list payloads will include it as well.
All the relevant documentation should be updated to reflect these additions: http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-GET-list-id http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-POST-lists http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-POST-lists-id http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-DELETE-list-id http://apiwiki.twitter.com/Twitter-REST-API-Method%3A-GET-lists Let us know if something seems amiss and we hope you enjoy! -- Marcel Molina Twitter Platform Team http://twitter.com/noradio