Cingular customers have been experiencing a system-wide problem today in the Los Angeles area. The current glitch comes two days after announcing a shiny, new mobile/web deal with MySpace. Maybe the Verizon/YouTubers have taken to knocking down towers? I speculate. Below, please find the dramatic re-enactment of my customer service phone exchange. The grumbly lady that answered my call was less thrilled about answering my questions: Is there currently a problem with service in......