I assumed that when David Pogue was going to address the most annoying thing about the iPhone's keyboard on his Missing Manual site, it would be the the fact that the phone makes it difficult for those of us with less than slender fingers to type, We'll leave that one for another day, but what he does provide is a great iPhone tip and solution for, is how to add punctuation to text simultaneously without having to switch back and forth from the '.?123' key to the 'ABC' key- which I've learned can be a big pain in the yoohaw! Keep reading to learn how to do this. To type on the iPhone with one single gesture: touch the '.?123' key while holding your finger down. Slide your finger onto the period, comma or any other punctuation key and release. The 'ABC' layout will return automatically. Finally- now I can get back into my speed text-messaging mode! Thanks David!