If you are looking for an iPhone stand that is a little more sophisticated than a couple of paperclips, you might be interested in the iCooly clip stand.
As you can see, the clip in on the back of the case is the heart of the iCooly. It can be rotated and positioned for carrying or standing horizontally/vertically on a flat surface. The case comes in a variety of colours and can be purchased now for around $US33. [Maximobileshop via Likecool via Geeky Gadgets]