The iPhone 4S continues to impress me. This is from National Geographic Adventures.
"Recently, Camp 4 conducted another experiment: They shot a music video on a camera phone. While normally this would sound like a waste of time for filmmakers of their expertise, that was not the case. Shooting on the iPhone 4S, with its 8-megapixel camera and 1080p hi-def video, the team produced great results. "http://ngadventure.typepad.com/blog/2011/11/tips-on-how-to-optimize-your-iphone-4s-adventure-video-from-the-pros-at-camp-4.html