I've heard enough from friends in California about Pinkberry that I wanted to add my two cents about a place I just checked out on Friday night called Ice Tango. It just opened in North Scottsdale (Target/Albertson's shopping plaza on Frank Lloyd Wright and the 101).
They have a couple of fruit flavors, but the best is the basic (called "twangy")--very sour yogurt flavor. The guy said it was pretty much the same as the Pinkberry and Red Mango frozen yogurt places. I tried it with pomegranate seeds. Really addictive (guess that's why they call Pinkberry, Crackberry!). The place also serves crepes and is about to serve frozen custard as well.
It will be interesting to hear a comparison from anyone who visits and has had the infamous Pinkberry in LA.