We purchased a Garmin C-320 to use for our laundry delivery business and were very disappointed to find out that Mappoint does not export latitude and longitude when creating an Excel spreadsheet of pushpin data.
We installed the Pushpin plug-in and were quickly able to export all the data we needed. Using the POI Loader available from Garmin, we were able to download our entire delivery route into the Garmin unit as POI's (Points of Interest).
On the GPS we simply enter the customer number and the navigator is able to set the route.
PushPin is a great product and it makes Mappoint much more functional for custom applications.