So intrepid TUAW readers-slash-detectives, what can you find lurking in that new 10.5.3 firmware release that provides new and exciting iPhone functionality? Let us know in the comments.
My completely wild pulling-it-from-the-posterior guess is something to do with AppStore support -- or maybe the iNewton -- or maybe "back to my iPhone" support -- or... No really, I have no clue. Hopefully Uncle Steve will give us something nice for Keynotemas. Until then, see if you can figure it out.