Neosistec CarFinder
Can’t remember where you parked your car in that large parking lot? When you leave your car, open CarFinder’s simple menu and mark your location through your Blackberry’s GPS. When you need to find your car (or another specific point) again, pull up CarFinder and it will guide you back via a compass or the Blackberry Maps application.
Google Maps
Just like the popular online maps site, Google Maps offers a great Blackberry application which allows for most of the same features on their site, except again, its running on your phone. You can get directions, get maps in satellite view and watch traffic and see your location (which can work even if your Blackberry doesn’t have GPS, but works better if it does).
Hope this is worth 10 points.