Hozo ver5.1.1 with Map Generation Tool is available!
We have published Hozo-Ontology Editor- ver.5.1.1
It supports a Conceptual Map Generation Tool for Ontology Exploration which we presented at ESWC2008.
[Reference] Kouji Kozaki, Takeru Hirota and Riichiro Mizoguchi: Development of a Conceptual Map Generation Tool for Exploring Ontologies, Poster Noets of the 5th European Semantic Web Conference (ESWC 2008), Tenerife, Spain, Jun. 1-5th, 2008.
You can get it at download site.