As Google have announced that they intend to host Javascript libraries for each of the major libraries I thought I would throw together a quick plugin that will automatically switch your WordPress site from using locally hosted javascript libraries to using those hosted by Google.
Activating the plugin will switch your site to use the Google libraries, de-activating will switch it back to the default.
It will only switch scripts loaded with wp_enqueue_script, which should be most well written plugins and/or themes.
The plugin is available here:
http://blog.clearskys.net/2008/05/28/google-ajax-libraries-api-plugin/