B Bowl East had it about a month ago. It was cut in small pieces (not surprising since the whole fruit is massive) and it was the best quality I've had. It was about $2 per pound as I recall. But I have not seen it there in the last few weeks.
Thanks to everyone for their help on locating Jack Fruit. I checked with Berkeley Bowl East and they do get them somewhat regularly. However, the one they got last week was too green to sell. A friend found some on Clement Street in SF. So I got my Jack Fruit fix for now!