New module: Code Server - limitless communication between sites

As it says on the Code Server project page ...

Allows limitless communication between Drupal sites.

Code Server provides a framework for calling PHP functions on a Drupal site from code running on a different Drupal site.

Applications include:

• Synchronising data (content, users, etc.) between two or more sites.
• Synchronising files (attachments and uploads, etc.) between local development machines and remote (e.g. Pantheon hosted) development site.
• Running arbitrary tests without needing any specific supporting code installed on the remote site.
• More!

Example:

  // Load a node from the remote site.
  $node = $remote->node_load($nid);
  // Save the node on the local site.
  node_save($node);