A hack for being able to run Jetpack in WP locally.

jetpack-localhost-hack

# Go to plugins/jetpack/jetpack.php into the folder of your WP local website.
# Find the line (276) below:

/**
   * Is Jetpack active?
	 */
	public static function is_active() {
		return (bool) Jetpack_Data::get_access_token( JETPACK_MASTER_USER );
	}

# Replace it with:

/**
   * Is Jetpack active?
	 */
	public static function is_active() {
		return true;
	}

# Find the line (2263) below:

	function admin_page() {
		global $current_user;
	                $role = $this->translate_current_user_to_role();
	                $is_connected = Jetpack::is_active();
	                $user_token = Jetpack_Data::get_access_token($current_user->ID);
	                $is_user_connected = $user_token && !is_wp_error($user_token);
	                $is_master_user = $current_user->ID == Jetpack::get_option( 'master_user' );
	                $module = false;
        ?>
# Replace &is_user_connected to:

$is_user_connected = true;

# End

# Before migrating WP site to live, put back the original one.
# Source: http://wordpress.stackexchange.com/questions/42352/jetpack-running-locally