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Re:Unity game engine 3.0 will support Android, PS3 and IPad by teamonkey on Tuesday March 09, 2010 @05:41PM (#1179592)
This engine has been sold commercially since 2005. I can't even find any reference to the other engine you mention.
Re:Unity game engine 3.0 will support Android, PS3 and IPad by lutorm on Tuesday March 09, 2010 @06:02PM (#1179633)
The other has been used since 1999. http://en.wikipedia.org/wiki/World_War_II_Online

EDIT: appears to be USPTO trademark reg # 75824303, filed on Oct 18, 1999.