For $20 you can fund a Kickstarter project and get a Glif iPhone 4 tripod mount and stand. The video at Kickstarter has information about the designers / makers of the Glif, as well as examples of how to use the versatile gadget.

The Glif will be manufactured with a Santoprene (grade 101-87) hard rubber. This material feels great to the touch, and holds the phone securely. It is also recyclable.
Glif is the labor of love of just two individuals: Thomas Gerhardt and Dan Provost. We put a lot of thought and energy into this thing, and we hope you enjoy using it as much as we enjoyed making it. Additional information can be found at www.theglif.com.

Glif – iPhone 4 Tripod Mount & Stand