When using google maps and BBMaps with a Bluetooth puck I usually ask it for directions. Why doesn't it automatically give you directions along your route instead of having to click next. Shouldn't it automatically tell you what to do as you approach the point?

That would be nice. Right now the only way to get that is to use a program like TeleNav. In google maps the best you can do is press "0" then your location will stay in the center of the screen. It would be nice if the directions captions would come up when you hit the next point.

Does Google have a features request e-mail like RIM does?

not directly, but try this - Discussions - Google Maps for mobile | Google Groups.