Is the bluetooth technology only built into pkg 8 & 9? I've only seen test models with the nav system - so they have the bluetooth phone option. I'm curious if the on-screen system (without nav) shows the bluetooth phone option. I really want to know if there are any possibilities to develop the bluetooth technology any further. It would be great to be able to have future upgrades/add-ons... to be able hook up other bluetooth ready gadgets (like PDA's and external Nav systems). Maybe that will be available on future models? Anyone know?