A feature that we often forget about is map functionality in Dynamics GP and later versions of Great Plains. (8.0 for sure, 7.5? I can't remember)
On a variety of forms you'll see a small yellow and green push pin icon next to an address ID. Clicking this takes you to Windows Live local maps powered by Virtual Earth. In most cases you get a map, and ariel view and often the ability to see the location just above street level.
It's one thing to give your delivery guys a map. It's a whole new twist when you can give them ariel photos with landmarks around their destination!