Photo JoJo has introduced the new Swivl for you iPhone cinematography buffs. The pan looks really great from the example, and you can mount it to any existing tripod including the infamous gorilla pod as pictured above.
Check out the Swivl here: http://photojojo.com/store/awesomeness/iphone-swivl/
Joby Gorilla Pod here: http://joby.com/gorillapod/original/
Keep Snapping - Carlos