I'm posting via my iPhone. I could already post from my iPhone but now things in Typepad are iphone-sized.
You get a set-up screen and protected email addresses to post from.
Important point. The iPod touch is also supported. Of course the touch doesn't have a built in camera...
The volumes that the touch can generate in 22 countries at $299 and $399 and no phone contract will quickly dwarf the iPhone's sales. The volume will drive iPhone-sized apps like this one and, as Steve says, expand the tent.
Good to hear too, Apple just sold their millionth iPhone. So much for the theory that Apple needed to drop the price to hit their Sep 30 million sales goal. Go Apple.