This is a very nice time-lapse video capture using an iPhone 4S.
Interested in doing it yourself?
The first thing you will need is a time-lapse App. There are plenty in the App Store to choose from. Some are free, but others cost a few bucks. At a minimum, the App you choose should allow you to selective the total number of frames, time interval between frames, and the playback frame rate.
The second thing you must have is a way to mount the iPhone on a tripod. There is the $20 Kungl iPhone tripod mount mentioned by the creator of the video. There is also the Glif for about the same price. The first one doubles as a case and the second one is made for naked iPhone 4 only.
Keywords: iPhone 4S, Time Lapse, Timelapse, Video