This entire post, with the exception of adding the hyperlink, was created with WordPress for iPhone. The photo feature is very nice, allowing you to add photos from your Photo Library or take new ones.

This is precisely what I have wanted, and I think it will greatly increase my number of posts. Even if I want to do some touch-ups from a desktop browser before I publish a post, it will be waiting for me as a draft.

UPDATE: I also discovered that it has a helpful recovery feature that can recover changes to a post that were not uploaded/saved properly before the application was closed.