I just noticed that the Mendeley plugin stopped working on two of my sites. One is running wordpress 3.1.2, the other 3.0.4.
The PHP error I get is:
PHP Fatal error: Cannot use object of type stdClass as array in /[path-to-site]/wp-content/plugins/mendeleyplugin/wp-mendeley.php on line 385
The script is trying to access the list of editors as an array, but apparently it isn't anymore. Perhaps something changed in the Mendeley API?