The Unreal Engine game that came with it has bad
framerates, HD video isn't smooth unless it's encoded in a specific way, performance
drops in any orientation besides the default... and this was all
consistent with the two Xoom display models I've looked at as well.
As you can see in the images above, the
framerate dropped from a
consistent 55 - 60 fps in KF2, with no perceptible input lag, to mid-40 fps with 5 - 25 -LRB-!)