When we went to L.A. I was hoping to get a chance to visit Pinkberry or one of the many knockoffs, but we didn't have time (we did have a celebrity spotting of Jason Schwartzman while dining at Real Food Daily in West Hollywood*, but that's another story).
There may be some controversy about the legitimacy of the yogurt at these chains. Some friends said they were enjoying dessert at a Pinkberry-like establishment, when they had a run-in with a disgruntled ex-employee. After arguing with management over his final paycheck, he turned to them and said, "It's not real yogurt, you know. It's just sour cream with powder from Korea!" Then he stormed out.
*Is it cool to call it WeHo? I couldn't get a straight answer.