EXCELENT PROGRAM!!!, congrats!!! The best image brouser for MAC. Im using macbook dual core 2, and the only bug i find is when i rotate the image and save it (without recompression) it saves the file replacing the old one but the program after doing that crashes and closes. I dont know why. Also the ^save lossessly^option in the menu appears in grey, maybe im doing something wrong.
I use in windows xp irfanview and the only thing i miss is that u can edit the image gamma, histogram, contrast...
Good job on the cropping tool!!!