Get the last revision id of any given entity? Is there a single, unified method in Drupal 7 to get the last revision id for any given entity object?  If so, what is that method?
I think entity_extract_ids() is the quickest you'll get:


  Helper function to extract id, vid, and bundle name from an entity.


e.g.

list($nid, $vid, $bundle) = entity_extract_ids('node', $some_node);