Hi, I'd like to present you a simple script.
It let you automatically select all UV borders and break their Phong shading, that might be useful for game modeling, especially with hardsurface props.
More info about hard edges - http://www.polycount.com/forum/showthread.php?t=107196
Unfortunately, the 'Texture View' window must be opened at least once for properly work :(
Just close 'Texture View' and continue work.
Download link: https://github.com/rocketjump4d/UV2PhongEdges