I got this idea from Dave over at Mobileweb4u.......its a great app for keeping your Outlook addressbook up to date.
I know a lot of us out there use Outlook with our Berries and this service is awesome. This service integrates right into Outlook, it will create a Business and/or Personal vCard, send it to all, or a selected number of your contacts, then asks them to update their info and will automatically update your outlook thus your Berry. It keeps everything online, to access and as a backup.
This is a great service and I recommend it to all. www.plaxo.com