Morfo. Animate 2D pictures.
Puppet Pals. Story telling app.
ScribblePress. An app for writing, illustrating and publishing books online. You can also have your books printed.
Paint.NET. Photo editing software.
VLC Media Player. Great video player that will play almost any file type.
Kodu. Free game programming software from Microsoft.
Scratch Software. Free programming software.
Garageband. A well known app that’s used to make music.