Talking about this: http://www.sawyer.com/water.html (second one, Sawyer Fast Fill Hydration Pack Adapters )
Just received mine. It works great! Something that wasn't apparent to me is that the male end of the apparatus, which branches directly off of the filter, is compatible with the Camelbak female mount that the entre tube stems from. So, you can use it with the Sawyer junction that you put into your cut tube, or you can mount the filter directly to the Camelbak. Pretty neat. it also lets you use your 2-inch mouthpiece tube connected directly to the reservoir in case you can't use your tube (cold weather).
It's not a huge difference, but it's smart. I dig it.
Not doing backflips over it though...
Anyone want pictures of anything specific?