I just purchased a 1 lb bag of frozen edamame in the pod at Whole Foods. The nutritional data on the back says that there are 3 servings of "edible portion" in the bag. And according to that each serving is 120 calories, 4 grams of fat, and 3 grams of fiber.
So, I'd assume that there is a total of 360 calories for the whole bag of edamame pods. I'm not sure how many cups that is because I weigh everything. For me a serving of the pods would be around 5 oz for 120 calories.
I hope that helped, and by the way, I love eating edamame out of the pods too! I think they're addictive!