You could have downloaded MacWall 1.0 for Mac from our application library for free. The software belongs to System Tools. The actual developer of this free Mac application is Onemac.net.
From the developer:
MacWall is a dashboard application that allows you to download free wallpapers, design tips and top links. With this program you can download: 5K wallpapers, iMac wallpapers, iPod classic wallpapers and many others. The application has a user friendly interface.
You may want to check out more Mac applications, such as Calendar Clock, SplashShopper iPhone Desktop or 3D Globe, which might be related to MacWall.