iPhone Savior featured this short video clip this morning by Scott Patrick showing how to use an inexpensive Contour iPhone case and some common hardware to make an iPhone tripod mount.
There are two impressive points about this mount; first, by using the Contour case, you know that the iPhone is going to be held securely (my wife used one for over a year and never had it inadvertently open up), and second, Scott made it so it will work with any standard tripod camera mount head.
With the tripod Scott is using, it would be simple to flip the camera 90° to put it into a landscape configuration. This should work well for both still photography with any iPhone or video work with the iPhone 3GS.
[Thanks to TUAW reader Michael for pointing us to this video]