Auto Generate Image Derivatives

/**
 * Request URI, thus generating pic 
 * @param $path
 *   The path to the orginal file
 * 
 * Notes
 *   This is a slow function, since it waits for each derivative to be generated
 */
function generate_images_for_all_presets($path) {
  foreach (imagecache_presets() as $preset) {
    file_get_contents($base_url.$base_path.imagecache_create_path($preset['presetname'], $path));
  }
}

Implementing this as an action would be a nice addition.