How to delete ALL contacts in Address Book 10.6.3.(1091) in Macbook?

I made no effort ever to add the contents of my iPhone to my Macbook. Ever. Right now in my Skype app that I have only Just downloaded have I just found ALL of my iPhone contacts in it's contact list. NOT GOOD. I am looking for a way to remove my iPhone phone book from the Address Book on my Mac and then remove ALL those same contacts from the Skype contact list.

I am now removing my iPhone contacts from Address Book on my Macbook one by one manually. Is there a shorter way of doing this?