I can't figure out how to get the blue location dot on the iPhone. I can get the circle location, but in order to get the Blue Dot to estimate your location, Google Help says to press "0" on your keypad. Well, there is not a keypad available. If you've ever used Google Maps on another phone, you'll know what I mean. This "throbbing" dot is supposed to "move" with you as you drive. (http://www.google.com/mobile/gmm/mylocation/index.html) I have not seen that. The circle is stationary and I must press the location icon to refresh my location. On a blackberry, your location is in the circle. Someplace in the circle (usually on the road) there is a throbbing blue dot that estimates your location. As you drive, both the circle and the blue dot updates. It does not update every second like GPS, it's more like every few minutes. It is really cool functionality and I was looking forward to seeing it on the iphone.