One of the final parts of the R3 Unicode implementation is to define the sort order for strings.
The sort order will be determined by a simple collation table that for 3.0 assumes strings are normalized into single codepoint representations. Later, for 3.* we can add other methods.
The standard R3 distribution will contain the collation table for the "western" charsets, including latin-1, etc. We can do the same for some of the other smaller eastern charsets, and I am open to others, as proposed and defined by the REBOL community (RC). I will admit I know nothing about the sort order of Chinese or other Asian codepoints. (But, I know that some of you do!)
Once booted, R3 will allow programs to set their own collation table.