In case anyone's curious... I received my PowerBook adapter settlement certificates in the mail today. Two of them, since I had purchased a second adapter that also failed. Some bad news: they're $35 each, but they are non-combinable, must each be used on a purchase of at least $65 of apple branded products at the apple.com store, and they are not combinable with the Education discount. On the plus side, they can be used on discounted or sale products.