Keep in mind, though, that the official SDK doesn't provide any way to capture video from the camera (for now). Apps can only use the Image Picker, which lets the user give the app an image from Photos or from the camera. Same thing that happens when you go to add a photo for a contact, for instance.
So, apps created the "Apple-recommended way" and sold through the App Store won't be able to shoot video.
This may all change if the next iPhone features video capabilities and Apple updates the OS and the SDK to support it, of course.