Pros & Cons
Pro: I am posting this from the new LJ app for the iPhone.
Con: I can't read with it, only post. Which is dopey, all things considered.
Pro: They took their time, it's slick, looks good, seems to work pretty well.
Con: It crashed before I finished the post.
Pro: Hopefully they'll develop it further to include reading your friends list.
Con: They shoulda thought of that already. Facebook and Twitter are fully functional here...