Recall that I asked in response to Kevin's statement that "A non-KDE browser will NEVER be an option for a KDE spin no matter how often you ask for it." Saying that Konqueror is KDE's browser because Konqueror
is KDE's browser is kind of begging the question.
I think then what you were trying to ask was "what would be considered as qualifying
as a KDE browser". For me, the only way you can be a KDE browser is to show up in that
application list as sponsored by the KDE project (or whatever it is called now).