So today when I was headed somewhere I had one of the more annoying things happen that I've experienced with this Droid. I was driving to an address and had entered it into Google Maps and selected the navigation option. As I was driving I dialed a number and was leaving a voice mail for the person when the navigation started issuing voice commands right into my ear... loudly. I'm pretty sure that it was audible on the other end and was the last thing I needed when leaving my contact information with someone who didn't have it. I took me a few minutes to get all the information out w/o being interrupted by the voice guidance. Quite annoying. Any ideas? This is something that needs to be corrected with an option within Google Maps Nav that allows you to mute voices when in a call.