Gabboodle is very fine, but one thing I am really missing:
tabs or registers.

In a Tab you can organize different tasks, topics, you have a 2-dimensional navigation.

How would it look like? Please look here:

http://www.tranglos.com/free/keynote_screenshot.html.
(One of my prefered 10-windows-Programms, if I have to work on Windows).

Best regards

Loorbeerblatt