Bert found these very cool photo apps (see the videos). It seems they are not for sale right now, but should be soon. One use for example is a time picture of a person in a busy street. And after taking the picture you, right on the phone, freeze the person, and just click on each to remove the other people, because the phone camera captured the background behind each over the couple seconds you "filmed", and it blends a bunch of photos into one.
I still think Apple should have called it something else than iPhone, and thus laying the ground for people seeing "smartphones" as phones. They really have little to do with a phone, the phone app is just one amongst many, and not even the best one. It's a 21st century palm computer, and way more powerful than anybody imagined in the nineties.