Print your copies using your scanner and printer as a photocopier
iCopy lets you combine your scanner and printer into a powerful, but easy to use photocopier by only pressing a button. Its simple user interface lets you manage scanner and printer options with a few clicks.
Easy, fast, and lightweight backup and synchronization app for Windows
Create Synchronicity is an easy, fast and powerful backup application. It synchronizes files and folders, has a neat interface, and can schedule backups to keep your data safe. Plus, it's open source, portable, multilingual, and very light (210kB).
Tween is a client application for Twitter.