About the top row showing About/Images/Videos etc.
I would like to use my vertical scroll wheel to move to the left and right instead of having to travel with my mouse all the way to the corner to hit the red arrow-button.
I'd say write a little came. Possibly with multiplayer support if you want a challenge.
I recently started writing a clone of the curveball flash game with OpenGL graphics and network multiplayer support to learn haskell. I'm halfway through and I think I am familiar with the basic haskell concepts now.
I agree. I am a vim fanboy, but I don't see myself using this. Presentation is about how best you can convey an idea, and I don't see this being flexible enough to help me do that.
The only upside I can see, is that if you are updating very often a presentation while collaborating with someone else, it is easy to keep it under git.
Probably not reason enough to learn Org-mode, but good to know if you know the Org-mode basics. (Basics of Org-mode are simple but it can get pretty complicated b/c so many features.)