In 3.5.13, with KDE 4 installed, all of the KDE 4 apps appear in the T-Menu with a [KDE 4] identifier.

If somebody on the Trinity team did this then kudos. Nice touch!

Can I go further and not have any KDE 4 items show at all --- without creating a custom menu, removing all KDE 4 packages, or editing every *.desktop file?

Darrell