DOCBOOK-APPS: DocBookIDE01.zip and PSGML?

Hi Norm & all

How should one think about the relationship between the DocBook IDE 
[1] and PSGML? I'd assume PSGML gives more sophisticated structure-
navigation and validation, and the IDE is more "lean & mean". Will
the IDE eventually be subsumed in PSGML? Or are their approaches 
very dissimilar? Could one for example just load the IDE's 
abbreviations under PSGML?

-- 
jean                                           . ... .... ///\\oo//\\\

..[1] http://nwalsh.com/emacs/docbookide/index.html