I'm using "lists" as a way to look for geo related users. So for get lists of a user I use: http://api.twitter.com/1/USER_ID/lists/memberships.xml
I know that user_id insted of screen_name are not documented but I expected that it works and it works! So I'm trying too to get others users from the lists that my first user are... http://api.twitter.com/1/user/list_id/members.format But here I can't get API to work with user_id and I really don't want to use screen_name. http://api.twitter.com/1/45232963/1505300/members.xml I think that it might work It seems like a bug. Twitter might accept IDs...
