I bumped into this UV mapping plugin for Maya is amazing and a lot of people are swearing by it. UPDATE: This tool is no longer free. it now costs $199 USD. It's still worth checking out.
UPDATE 2 Maya now has some pretty great UV mapping tools within the new modeling toolkit so you may not even need this kind of plugin anymore!
Check out this great tool!
Website
http://rd3d.com/dtools/?page_id=81
CG talk thread
http://forums.cgsociety.org/showthread.php?f=59&t=1035316&page=1&pp=15
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