This is weird - when I'm using the new Google Maps app on my iPhone 4 connected via Bluetooth to the car's built-in bluetooth, the audio turn-by-turn nav has this rather odd behavior:
"In 100 feet" (google lady)"Call ended" (Volt)"Turn Left""Call ended"And so on. This is just weird, IMO. It's almost unusable, quite frankly. All those "Call Ended"s are just f'ed up.
I do a little iOS app development, and I get the audio part a little bit. I'm guessing that Google is just doing something funky that interacts poorly with the Volt. If I'm connected via my BT headset, I don't get the "call ended" business.
It's something like there's some TTS going on in the Google app, and then that speech is played out through the connected speakers. But I don't get music through bluetooth, and I'm not sure I get other beeps and ringtones through bluetooth. I can play music if the phone is connected via an iPod cable, but not on bluetooth only.
I'm not sure if Google, Apple, GM/OnStar, some, or all of them get to share in the blame.