I actually tried this exact model out at Tiffen booth in CES 2010 couple days back, I think if you are going to shoot motion with an iPhone, it does make sense to use a steadicam. But then again, if you can afford a steadicam, you should really be shooting videos with a real camcorder or like me, Canon EOS 7D.
The Steadicam Smoothee™ is specifically designed and engineered to work with your Apple® iPhone 3Gs. Based on the same technology as the big $60,000 rigs used in Hollywood, it allows iPhone 3Gs owners to capture incredible video without the shakes normally associated with hand-held video shot on the go, right out of the box, the very first time.
“Whether you’re a novice or aspiring videographer, the Steadicam Smoothee™ allows iPhone 3Gs owners to have a richer experience and more fun with their iPhone,” said Steve Tiffen, president and CEO of the company.