Two column blog post with scroll reactive slide show

Does anyone know of a Wordpress theme/plug-in that does this:

http://thegourmand.co.uk/on-screen/foraging-for-mussels-in-the-land-of-fire-and-ice

A two column layout with long copy on one side and a slide show on the other. The neat trick is the slides advance as you scroll down the copy.

Any ideas?