I wonder if you've heard of this?  Perhaps a dl-wnn and dl-canna
 would be good additions to XEmacs?
>>>> "Takuo" == Takuo KITAME
<kitame(a)northeye.org> writes: 
    Takuo> Hello.  I intent to package emacs20-dl.  emacs20-dl means
    Takuo> emacs20 with Dynamic Loading architecture(dl).  dl will
    Takuo> provides by emacs-20.4-dl patch.  About dl,
    Takuo> 
http://www.m17n.org/mule/dynamic-loading/ (In Japanese)
    Takuo> [...]
    Takuo> And I will intent to package some emacs dl modules.
    Takuo> Modules are dl-wnn, dl-canna and hmac.