Exporting MobileMe Contacts into Outlook
Do you have access to an Exchange server?  Is your Client using Outlook 2011 for Mac in an Exchange Environment?

If so, it is super simple to get your data into Outlook.


Connect the Mac to Exchange (Address Book settings)
Move all address book cards from "On My Mac" to the Exchange Account
Open Outlook and...   Bang! there they all are.


Well... the "bang!" was a little dramatic... really you will need to wait a bit while the address sync over..

I have done it a million times.