Let me start by saying the Incredible is an awesome phone with a lot of potential. Unfortunately, I had a very serious problem with it and had to return the phone on Thursday. Here's the story: I have a 2009 Ford F150 Lariat with the SYNC system. When I connected the Incredible to SYNC via bluetooth, everything worked fine for a couple of days. Then I noticed my rear camera wouldn't work when I reversed (the truck has a camera in the back that shows up on a screen in the dash). I said 'hmm that's weird' and thought nothing of it. Then I noticed my A/C didn't work. Again, I thought it was odd and got a little more concerned. Finally, after a 3 hour drive I tried to clear the bugs off my windshield. No dice. Windshield wipers wouldn't work. I can deal with the other two, but not the windshield wipers. That's serious.
Experiment: Keep in mind, I have had the Incredible about 3 weeks. I never had a problem with my old phone and my truck. So after these 3 things failed, I turned the bluetooth off on the phone and coincidently enough everything worked properly in the truck. Then I take the truck to the Ford dealer and they run a test on the main computer. 15 error codes came up. So to make a long story short, HTC and Ford tell me they have never seen anything like it before and don't know what to do. They both agree that the phone is probably overheating the truck's computer and causing it to draw power from other things in the truck. So I said screw it and returned the phone. It's a shame, I really liked it. But until they can fix the bluetooth issues (I've heard other people complain also) I'm fine with my old phone. So fellow Incredible users, please be careful if you are using the phone with SYNC. You might not be able to use your wipers the next time it rains.