Hi,
The basic idea is to
1. Write your slides in R Markdown
2. Separate slides using ---
3. Run slidify('slides.Rmd')
and you are done!!
I have kept it modular, so that you can write an Rmd document once, and render it using deck.js, html5slides, dzslides, shower, slidy etc. Syntax highlighting can be done either using highlight.js or the highlight package in R and you can style your source code using any of the available themes provided. You can also add custom css and javascript to the default folders and slidify will automatically include it in the html output.
Slidify is still version 0.0.1 and I am still in the process of writing detailed documentation. For most of you in this group, I presume looking through the source code should work well !
Please use the github repository if you have issues while trying to use slidify.
Best,
Ramnath