If the new pomegranate flavors from Pinkberry and Red Mango don't do it for you, consider this: what if you had an endless number of flavors to choose from?

High-tech blending processes may be the next big wave in the frozen-yogurt trend. That's what I discovered when I visited the San Francisco outpost of Yogen Früz, a fro-yo chain with a high-tech yogurt concept. First, I chose from single-serving packages of a base yogurt in various flavors (low-fat vanilla, nonfat vanilla, or low-fat chocolate) with probiotic cultures.

Then I chose two toppings out of a large selection that included frozen fruits (strawberries, cherries, mangoes, lychees, blueberries, etc.) and dry toppings (Cap'n Crunch, almonds, coconut flakes, granola, and the like). Together they went into a proprietary machine. Twenty seconds later, I was enjoying my lychee mango vanilla creation, which was whipped, creamy, and studded with icy chunks of mango and lychee.

Yogen Früz may have pioneered the idea, but — with specially designed yogurt-blending machines available on the web, other boutique yogurt bars have caught on. Have you tried this type of yogurt? Now that the fancy frozen yogurt trend is waning, do you think custom blended fro-yo could be the next big thing?