So, for the benefit of other authors who are hitting that refresh button, here is my timeline:
October 26th: I receive a request to get my book onto iBooks.
October 27th: I have researched how to do this, looked over the Smashwords formatting requirements, and started formatting my book. (Yes, these requirements will give you a headache and make you want to give up--thank goodness they are changing the requirements in 2012 so that books can be uploaded as an .epub.)
November 1st: Uploaded my formatted manuscript to Smashwords.
November 10th: My manuscript was reviewed by Smashwords, and accepted into the premium catalog.
November 18th: My book appeared in the iBooks store.