So far I could excuse the 30 pin connector, back when they made it everybody used their own formats and they probably didn't want to break backward compatibility with all the existing iPod peripherals.
But now they decided to finally change it... for an other proprietary format? And the only advantage it has from what I've seen is that you can plug it both ways. Maybe it's apple way of saying "we're not the average smartphone, we're an iPhone!".
I also wonder what will happen with all the iPhone docks out there. The lightning port seems very small, can it really hold the weight of the phone without breaking easily?