A MUST for every photographer, amateur or pro! The easy stats (sunrise, sunset, and moon phase) are there, of course, but packaged together with sophisticated additional information, like the sun's elevation and azimuth angle (which are automatically calculated for any time of day and any location). Wow! With the iPhone’s built-in GPS capability, all this essential info is immediately available to the serious photographer or filmmaker, and all in a simple, intuitive interface. This will help me plan my shoots much more effectively in the future. Thanks!