Becrux Wally - Wally is a Qt4 wallpaper changer, using multiple sources like files, folders, FTP remote folders, Flickr, Panoramio, Ipernity, Photobucket, Buzznet, Picasa, Smugmug, Google, Vladstudio and deviantART images. Now it's available in many languages!!
Digit - SMS bot that monitors your bank account & saves you money
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Olivia - Your new best friend built with an artificial neural network
Random BackGround - Random BackGround desktop wallpaper slideshow with advanced features for Windows
Spendee - See where your money goes