Doritos Collisions Flavored Tortilla Chips feature two different flavors in one bag (saves you all that trouble of picking up two bags).
The first introductions in the US is the combo of Hot Wings and Blue Cheese and Zesty Taco and Chipotle Ranch flavors.
They will be sold in 12 1/4 oz. (347.2g) pillow bags.
X-Entertainment got a hold of both the Hot Wings/Blue Cheese and Zesty Taco/Chipotle Ranch varieties and have a roundup and Taquitos.net has a review of the Hot Wings/Blue Cheese and was pleased.