With the Asus Transformer Prime android tabled, the camera parameters used by Vuforia are most likely incorrect. Here you can see two screenshots. The marker on the left is located at the one of the corners of the camera image. It is giving an incorrect pose estimate as the blue outline is not aligned with the marker. The marker on the right is in the middle of the camera view and the pose is correct.
The misalignment becomes progressively worse as the marker is moved further to the edge of the camera view. It does this even when I start up my program with an internet connection available so it should have downloaded the correct camera parameters form the Vuforia server.
Any chance of fixing this?