Many international users have keyboards with the U.S. layout, and are accustomed to typing accented characters with the key sequences of the Windows "U.S. - International" keyboard layout. They often don't wish to get used to the Mac's option-key sequence
NightShift automatically downloads and updates WebKit, the Safari HTML rendering engine, to the latest nightly version. No user intervention is required, everything is fully automated.
Appetizer is application launcher, dock for windows. Have you seen Dock on Mac machine? Yes you could have one on your Windows now! Install Appetizer for free.
Automatic allows you to set up subscriptions for virtually any content linked in RSS feeds: podcasts, videocasts, torrentcasts... Rule of thumb: if it ends in '-cast', you can get it with Automatic.