The theme ‘minimal_markus_t’ is a derivative of Christian Genaehr’s minimalism theme.
I added the css menu on top, threaded comments and various page templates as well as the image mosaic function. It works with WP 3.0. As this is work in progress it gets adapted now and then to the author’s needs.
Feel free to use and modify it under the same GPL as Christian had put the original. Download it here: minimalism_markus_t