Let me stop you as well.
You can have several standards that do the same kind of thing, but aren't identical, ie. both USB and Firewire are standards.
VGA is A standard.
DVI is A standard.
Mini DVI is A standard.
HDMI is A standard.
Display Port is A standard.
Mini Display Port will become a standard as well. Even if Apple is the only one using it its still a standard, albeit not a widely used one. The only way it would not be a standard would be if there were a competing mini Display Port connector.