Initially, I am just going to dump stuff out so that I don't forget it. Later on, I hope to savagely re-edit it into a more coherent structure.
Overview
unicodedata is essentially a lookup table of the [http://www.unicode.org/ucd/ Unicode Character Database] that is published as part of the Unicode specification.
Bibliography
[http://www.unicode.org/ The Unicode Consortium]
[http://en.wikipedia.org/wiki/Unicode Wikipedia article]
A [http://java.sun.com/developer/technicalArticles/Intl/Supplementary/ discussion] of Unicode support in the Java platform.