OpenProj now has a Korean user interface available ! This is in addition to OpenProj versions in English, French, Spanish, German, Portuguese, Swedish, Russian, and Chinese. Geon Goo of ThinkFree provided the translation. The OpenProj team (http://openproj.org) is very appreciative!!!
OpenProj by Projity is a desktop replacement of Microsoft Project with equivalent functionality, a familiar user interface and even opens existing MSProject files.