to my knowledge, there are now two places in the bay area that offer tart frozen yogurt (a la pinkberry) self serve (a la yogurtland):
icebee in san francisco
and
frozo's in santa clara
i haven't been to either yet because they're either too far (50 miles) or inconvenient (bridge toll, parking). :( please someone go so i can live vicariously through your experience! :D
my life would be complete if they opened something in the east bay.