For a few months now I've been teaching different classes about web design and/or development. In preparation for those classes, I have found myself spending a lot of time inside Keynote as well as setting up my notes on a wiki using Hickey.
Keynote is a joy to use. However, I don't like the normal style of having lots of various master slide types. After finding a set of thick, thin, serif, and italic fonts or font variations, I like to have one giant text box on my slide - something that can show 6 lines or so.
I'm a sucker for pretty letters just sitting on a gradient.
Duplicating slides is the most common thing that I do. Even though I have removed all but one master slide, most of my slides are a progression. One thought, then another, then a final thought.

So far, I have not found a good way to build in those thoughts other than duplicating a slide and then adding the next thought. This is not a big deal, but it would be nice if I could make one slide and then have more control over how it builds in.
It seems that it might be possible to use an iPad to create (and possibly even present) my slides for my class. That is pretty interesting to me.