http://fedoraproject.org/wiki/MyFedora/ is pointing to some new documentation I started writing. Right now all I have is the plugin design document (http://fedoraproject.org/wiki/MyFedora/PluginDesign) but will be adding the plugin tutorial tomorrow and the widget tutorial will be written the week before FudCon when Toshio and I lock ourselves in a room and flesh out the design for the widget system that started at the last FudCon. Others are encouraged to comment on the design and send suggestions and I will be working during FudCon to get people interested in developing content or working on the backends.
infrastructure@lists.fedoraproject.org