XPS 2.0 in the new iPhone firmware

Does the iPhone with the new (3.0) firmware use XPS? I just upgraded my phone to 3.0, and from the way position is displayed on the new Google Maps application, it appears that perhaps the iPhone doesn't use either A-GPS or wifi triangulation or cell triangulation like it used to, but perhaps uses all the sensors in combination.

I realize that maybe the information is proprietary and you can't say one way or another, so just wink one time if the answer is yes and two times if the answer is no.