PhotoPatcher is a photo editing tool that lets you clone out unwanted portions of your photographs. Cloning is where you take a sampling of one area in your photo and paste it on top of another area. The end result acting as if you've erased that unwanted portion from the photo.
PhotoPatcher is very similar to Smartest Eraser but instead of automatically cloning (or erasing) out the area, you have do everything manually. Some may not like the manual approach but it gives you a little more control over what stays, what goes and how the end product will look. PhotoPatcher is a nice tool to remove small unwanted items from your photos (e.g. foot in the corner, dust spec, etc.) but isn't ideal for removing larger objects (e.g. entire persons).