This is a captured image of modo. Shading is "Advanced OpenGL."
This is a captured image of Maya's view (with no lights). Occlusion maps for this were made with modo.
I've made a script to avoid it. This script scales one of the UV shells then executes "Move and Sew UV Edges".
Go to the MEL script's page
In this script I used "atan" command to get an arc tangent value but I couldn't find any explanations about it in Maya 2008's Help. (If you use "whatIs" command to get an information about "atan", the result will be "Command" though.) I hope there isn't any problem about it.