Scanbot - Scanbot is a mobile app that allows you to use your device's camera as a document scanner. The app is capable of scanning a large number of source materials, and it can handle QR codes as well.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Scanner Pro - Scanner Pro turns your iPhone into portable scanner in your pocket.
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.
Genius Scan - On The Go.
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.