Earlier this week I was in the Vancouver MEC store, and they have the Xtherm in stock! I'm not sure all MEC stores have it yet, but it is online too. They just had size Regular at the store.
I got them to inflate one for the display so now you can see it in person.
I didn't buy one yet, but did a little measuring and testing. The one I looked at was 6g under spec (424 g instead of 430) and the full length end-to-end, inflated, was 74" (as opposed to listed 72"). It was 20" wide around the elbow area, but a very small 20" — I am a narrow person and had to put some effort into arranging my elbows in a back-sleeping position. Seemed find for side-sleeping. I also tried a Downmat UL7, and it was 20" wide at the elbow area also (and everywhere else), but felt infinitely wider and easier on the elbows (and much quieter!). Compared to the Xlite, it seemed that sometimes the Xtherm was louder / more crinkly, and other times the Xlite was more noisy.
Hopefully that's helpful to someone.
