There have been quite a few threads about Pinkberry clones in the Bay Area, and it seems like all of them are "not quite the same", but this place in Berkeley which opened a couple weeks ago has a product that, at least to me, seemed identical to Pinkberry.
They offer three flavors: plain, green tea, and pomegranate, the same sizes, and as far as I can tell, the same array of toppings. The store decor is chain-store sterile rather than Berkeley grungy, so they even copied that too.
For the record, I agree that Pinkberry isn't the world-changing thing people claim it is, but some people like it...if you're craving a fix, this is your place.
Papamingo: on Channing between Telegraph and Bowditch in Berkeley.