I feel like I've been hearing about Pinkberry for a long time, but I finally had it yesterday, and I see what all the hype has been about. YUM.
I got the coconut yogurt with raspberries, strawberries and mango. The coconut yogurt is SO GOOD. Highly recommended - and all of their yogurt is gluten free.
There is a Pinkberry in Boston in the Prudential Mall.
(ps - the mochi topping is NOT gluten free, it has wheat in it! check out their site for all nutrition and allergen information)