The Unicode Technical Committee has posted a new issue for public review and comment. Details are on the following web page: http://www.unicode.org/review/
Review period for the new item closes on July 27, 2011.
Please see the page for links to discussion and relevant documents. Briefly, the new issue is:
PRI #200 Draft UTR #49: Unicode Character Categories
This document presents an approach to the categorization of Unicode characters, and documents data files that implementers can use for defining and labeling Unicode character categories.
To supply feedback on this issue, please seehttp://www.unicode.org/review/#feedback