Let me remind you: Talk on this list doesn't mean that the issue is automatically brought up for UTC deliberation. If no documents are formally submitted, nothing will happen.
After all the discussion of Tibetan, if anyone has a serious concrete proposal for a specific change to the Unicode Standard, please write it up in detail and submit it. If you develop such a document you can comment via our "reporting" page here: http://www.unicode.org/reporting.html If the document is more than plain-text, you can arrange to send it by talking with me off-list, and I will see that it is properly registered for UTC discussion. Rick

