There's been a lot of hoop-la about the steep price-drop of the iPhone, and a lot of people have widely ranging opinions about the $100 credit.
Well, I (actually, my wife) willingly paid the initial price, and I've been absolutely happy with my iPhone! I also grabbed my $100 credit. All I had to do was hit Apple's website and type in my phone number, and my iPhone's serial number.
$100 is $100! Woot!