1. When I was running version 2, I remember that side road name was displayed on 3D view. Now I'm running version 3, I have to zoom in quite a bit (200m) to see the names or tilt it flat then I can see the names at 500m. Is it normal?

2. zoom-in and zoom-out button (up/down key) are way too sensitive. Sometimes, when I click just once, and it zoom-in/out by 3-4. Is there anyway to adjust this?

This problem has been mentioned a few times and sounds like a confirmed bug. Not sure if there is a setting or patch to fix this.

Another major bug of 3.0 is the Bluetooth discovery on startup but it shouldn't affect you since you only update the iGo.

I guess I have to learn to live with it for now... until someone finds a fix for them.