I decided to setup my tripod and try to capture the viewing angle differences of these two displays while I still had both devices in my possession. Both devices were at 100% brightness, and I let the camera choose the shutter speed (aperture priority - Nikon D200). Some of the shutter speeds selected made the overall image darker, but it still gives a good idea of the color and contrast differences between the two displays (in addition to viewing angle differences). My goal wasn't to compare brightness - both devices are more or less on par in that area.
If anyone was on the fence regarding the two devices, maybe these images will offer better insight into one of the most important aspects of a tablet - the display. The price gap is big enough, and the screen technology is different enough (all in favor of the Transformer), that someone being on the fence regarding these two devices is hard for me to imagine. You never know though.
You can view the flickr stream here. (25 total images)
The flickr stream description mentions this - but I'll mention it here too: The Xoom is on the LEFT or the TOP, and the Transformer is on the RIGHT or the BOTTOM in the pictures.
I hope someone finds these pictures interesting.
I have attached one of them here.