Great Multi Monitor Wallpaper Scaler!
Works pretty well, but can be buggy(having to restart a few times for searches)!! At first I experienced a lot of problems with the app, but most of the issues have been alleviated and the app seems to work as described(somewhat while being buggy) after Apples Recent updates. Worth the cost!! Hopefully future updates will allow for any image to be selected on your own HDD and not just Flickr images. Also, hopefull they fix a small bug which causes the Reset function not to work until you restart the app. The issues are very minor and if you want an app to strech/scale images across your multiple monitors, this is very easy to use, and worth the cost.
App~Guru about
Multi Monitor Wallpaper