I bought this case before I knew Asurion was sending me a Xyboard, it's originally for the Xoom:
Amazon.com: Xentris Folio with Stand for Motorola Xoom - 1 Pack - Retail Packaging - Black: Cell Phones & Accessories
I got it on a 1-day sale for $9.99 so not much lost. Surprisingly though, it fits on my Xyboard. It's not a perfect fit, and it's obvious that it's meant for the Xoom with the camera/speaker/power button cutouts and whatnot, but for the price and the general lack of accessories for the Xyboard, it's not bad. Pics (excuse the blurry cam, my OG Droid is the only camera I have besides my Xyboard):
It's a very snug fit, which I don't see as a bad thing. I can actually press the power button through the back of the cover so that's also not so bad. Still, I'm considering notching it for the power button.