Regularly checks WordPress repository information for your plugins and stores in WordPress.
Local WordPress Plugin Repo stores specified plugins via a custom post type in WordPress. It then checks the WordPress.org plugin API twice a day for updated information about your plugin, including basic statistics and support thread information, and attaches that as post meta to the newly created custom post.
This is a developer oriented plugin, and should only really come in handy if you want your plugins from the official .org repo stored in a custom post type.
Note that you will probably need to account for a bunch of this post meta in your front end templates, otherwise the only real info you'll get is in the admin area.