FOTD: What titles will be given to Prince William and Kate Middleton after their Royal Wedding?

The Queen has given Prince William and soon-to-be Princess Kate Middleton their official royal titles. After their royal nuptials this morning they will hold the following titles:

Duke and Duchess of Cambridge

Scottish Titles: Earl and Countess of Strathearn

and the Northern Ireland titles: Baron and Baroness of Carrickfergus

Of course one day they will most likely gain the more important titles of King and Queen.