NIRCam is a very flexible imager that includes features that will enable transit spectroscopy as well as converting NIRCam into the facility wavefront sensor.  The capabilities of NIRCam will be presented in the context of examples drawn from the NIRCam team's guaranteed time observing program.  This program ranges from deep surveys searching for the first galaxies to studies of KBOs in the outer solar system, and uses essentially all of the NIRCam observing modes.