Is there a way to view or display members from a global address list(or contacts list) in exchange on MapPoint?

Yes, I've seen it done using SharePoint portal, and also via a data export (text file from active directory) where you save off a file that can later be imported into MapPoint.

You need to remember to include full address information for each user; we'll provide the lat/longs based on that.

Because MapPoint has an api, you can then pick up the file using the Data Link feature.

Mark -MSFT