There was a thread recently which said that th A318 appears in Air France's schedule in January, so I guess delivery of the first one will be in December.
America West postponed it's delivery until 2006 for two reasons:
(i) When they applied to the ATSB for a loan guarantee, it was a condition of approva (by the ATSB) that new aircraft deliveries be postponed.
(ii) America West is (presently) sticking with the PW
engines, which have had big problems. The eng8ines won't be fixed for a while.