Last year we reported the Sandwich Bike by Bleijh Designs. It was shown at the Salone del Mobile in Milan and promptly stolen from there; and so it remained a concept bike.
Recently the design seems to have inspired a number of people.

• Core 77 reports that,
  

  Lund University of Industrial Design students Jacob von Matern and Fredrik Hylten-Cavallius are currently showing their sixth-semester project, the NIM city bike, at the Form Design Center in Malmo, Sweden along with many other selected bicycles for the summer display. NIM’s frame is comprised of a carbon fiber twill shell and a foam core, making it super light but extra strong. The aesthetics are derived from the bike’s composition and function–minimal, clean, and streamlined.

• Bicycle Design (and others) tell us about the Jano, designed by
  

  Roland Kaufmann, with Christoph Pauschitz as his supporting tutor, for his industrial design thesis project at the University of Applied Sciences, Joanneum in Graz, Austria. Roland explains that the dual bike concept is targeted at users who “demand a bicycle that can be used occasionally for fitness and that also fulfills the needs of every day life.”

  The concept itself is nice, but what really interested me was his documentation of the design process. The webpage shows several of the sketches and research images from the development of the bike. To see more, I encourage you to download Roland’s 138-page thesis pdf file, which documents his entire design process. The pdf file is mostly written in German, but it is still a worthwhile download for those of us who can’t read the language. A very small percentage of the passages are in English, but for the most part the charts, photographs, sketches, and renderings do a good job of telling the story without the text.