I have the thunderbolt and the moto h17txt. It will read text over the h17 but I can not get it to do navigation over the h17txt. Is there a setting for this that I haven't found? Any help would be appreciated.
Nav over bluetooth is not a feature in Android (though I've heard that it is being worked on). I was quite dissapointed to learn this myself, as one nice thing about VZ Nav on my Chocolate was that I could use my bluetooth and the rest of the people in the car wouldn't have to listen to it. I'm thinking that if you have a music capable bluetooth headset, it might work, but I don't have one to test this out on.
I have a Motorola S9-HD and navigation worked fine on both my Motorola Droid and on the HTC Thunderbolt but of course the headset is a multimedia.