Hello justforkicks,
thanks for your suggestions. There is a presentation editor built-in into OpenGoo. You can acceess it in the files tab, clicking new presentation.
It is an indpendent Open Source project called Slimey that was also developed by some members of the OpenGoo team. It is currently quite simple and uses S5 as presentation format.
I'll take a look at one note and the other link.
Thanks again,
Marcos