X3 Nav despite good processor speed, dead reckoning and some how easy-to-use functionality does not seems to be as professional as is called. I'd like to see in future development:

Create waypoint (or marks) using coordinates (degrees, minutes, seconds)
Chance to have track (to track-back mainly in non-road navigating)
A way to choose POI without categorizing (some times is difficult to find a POI in a specific category)

So, I propose for now Nav Professional to be called Nav Dummies (means, for dummies to operate). It’s true BMW core business is the vehicle technology that’s why all electronics stinks: Nav, radio, MD, Bluetooth phone. All too basic for such a technological advanced car. But I expected BMW to joint-venture with cutting edge electronics suppliers.
Don't be sad, I find my self also a dummy dealing with BMW poor equipment .