Today is not likely to be remembered fondly by members of MySpace's PR department. One of the most visible people on MySpace's payroll announced this afternoon that she is leaving, and to complicate the situation, Dani Dudeck is actually the company's vice president of corporate communications. Dudeck's departure may be rough on MySpace's image for several reasons, starting with her destination. Dudeck wrote on Twitter that she's headed to Zynga,