I have just finished a project for Adam Ball who is an artist based in London. This has been a real challenge and has made me push boundaries in to new territory.
Responsive Design, Responsive Images
The main area has been with serving appropriate image sizes according to the device. I have previously talked about my responsive images jQuery plugin which is a good stop gap for getting this to work across the current browser landscape. I have liked working with responsive images in this way because it is a much more organic solution than the ones I have seen elsewhere. It'll be great when we've got something natively to handle this sort of thing.