Is this milk supposed to be fizzy?

Occasionally you have to wonder what soft-drink executives are thinking. According to the Times Online, Coca-Cola is test marketing a carbonated milk beverage, Vio, in New York City.
The four main ingredients are skim milk, sparkling water, fruit and cane sugar. For now, there are four flavors: peach, mango, berry citrus and tropical colada. It doesn’t need to be refrigerated and the taste is apparently “like a birthday party for a polar bear.”
A review for BevNET.com offered the following assessment of the drink, which apparently shares some similarities with lassi, a yogurt-based drink.
“What starts out not seeming not so sweet, turns almost overwhelming almost half way through the bottle.”