PhotoWipe is a revolutionary image processing tool that magically removes
unwanted objects from your photos. Just paint over them in black, and click
go!
Uncovers hidden details in your photos. Sit back and watch as cage bars
disappear from the zoo, and your old girlfriend or boyfriend fades away.
It removes wrinkles, or it can remove entire facial features.

PhotoWipe uses a modified version of the greycstoration image processing library do its work. You can see more samples of this incredible tool here.

And best of all its free.