I believe the iPhone5 IS quite a ways through development, yet is being held off for reasons such as poor implementation of 4G service throughout the entire country and parts supplier's time schedules. Those pictures of circuit boards and phone cases that appear very different are probably leaks of the next version.
I didn't think Tom Cook did very well, publically speaking, pacing back and forth so much, trying to emulate Steve Jobs. I think he would do better just being himself. I also noticed a number of the speakers looking down at probably a teleprompter, way too much. They should look at how Scott Forstall spoke. Ok, maybe this does sound ridiculous, but I couldn't help noticing it while watching them for more than an hour and half. All in all, it was a rather boring announcement.
The reason I think Siri is so great, not because we've got an advanced artificial intelligence on a phone now, but maybe this will reduce traffic accidents, injuries and deaths on the road from inconsiderate drivers who illegally use their phones for talking, texting, emails and other things. Obviously cell phone laws, enforcement and common sense haven't worked. Maybe this is another way of attacking the problem and hopefully it will be inexpensively licensed for other cell phone manufacturers to use.