sorry to cross post but not sure if a bug in Views (i think perhaps) or maybe something "me aliases" could do
please see: http://drupal.org/node/606188
basically i am trying to add user/%/library (a view) as a menu item; but i can't because it doesn't have anything entered for to_arg_functions in menu_router table. if i manually add the me_to_arg callback, then it works fine - plus i see these have been added for my other non-View tabs like user/%/contact, user/%/notifications, etc.
getting close.. :)