PhotoReviewer is an image handling utility for people who juggle a lot of photos. If you have a digital camera, it's not uncommon to have hundreds or even thousands of images coming into your "inbox". You need to rename them, toss the bad ones, sort the good ones, email thumbnails to friends... you need an app that can help you with your photo workflow. Apple's iPhoto is a good long-term repository, but it isn't so good at that first stage of simply coping with the flood of incoming photos. Other apps tend to be overpriced, poorly designed, cluttered, and above all, slow.
A better tool needed to be written, and so we wrote it! And here it is.