Cf/x Photo Mosaic 2.0.9
cf/x photo mosaic is a highly specialized app to create high quality image-from-images type mosaics. It doesn't do anything else, but this one thing it does better than any other application available (and, yes, that even includes our own flagship 'alpha'). In addition to being blindingly fast, photo mosaic comes with special presets that help you create great photo mosaics even out of borderline images.