This is my first post, so please forgive any errors I make (or if I have misunderstood what is requested...)
There is an application I use a lot, which may be what you are after. It is no longer in development, and has now been turned over to the community. There are a lot of users out there who want this developed further, as it is a really nice bit of software.
It is called KeyNote, and the original web page is here:http://www.tranglos.com/free/keynote.html
It has been moved to SourcForge.net, but nothing much has happened.
Take a look!