It uses different sources for background images, such as local folder or FTP remote folder, Bing search, Flickr, Picasa, Photobucket, etc
Using the program is very simple. Download (7.4Mb) and installs it (Windows XP). Select a source (for example Bing, or add more), add key words like garden, flower, nature, etc, select time interval (1Min or above) and click OK to save.
Now right click on the Wally tray icon and select ‘Play”. That’s all.
Works on Windows, Mac and Linux operating systems. Download Wally form http://code.google.com/p/wally/