This is a great idea, i am a UK user. When you set up an account with a courier the pricing is based on zones, eg, wales england, N ireland, N scotland, S scotland. To be able to see where most of the parcels are being sent would allow us to get the best possible postage prices for our customers.

Will

http://shop.thecleverbaggers.co.uk

It would beuseful to include a Google Maps page in the back office showing the locationsof all clients.
When purchasing in the shop, a client have to (in any case) supply you with theshipping address. In the back office you could have a Google Map what show theworld with icons on the locations of your clients. This way you could see idthere are clusters of clients in certain areas. Based in this information youcould adjust marketing efforts.