I just wish there were a WP management API. Like, let me remotely do updates, backups, user administration etc. against a bunch of WP sites from a single console (or better yet, command line script), rather than having to log in to each one individually to do that stuff, which is a pain.

EDIT: So it turns out there's a third party project that kinda sorta does this: WP-CLI (http://wp-cli.org/). Anyone used it?