The web design approach at many of the agencies I've worked with has been as follows:
What’s wrong with this picture? The approach is not wrong, but the process should be tossed out. Responsive Design is a more elegant means of accomplishing the same objectives, with less work. With the increasing use of mobile devices to access the web, it’s ever more important to focus on effective and accessible means of displaying content. Websites should function well on multiple devices; not just a desktop / laptop computer with the addition of one or two targeted smartphones (e.g., iPhone and Blackberry). With a progressively enhanced website it is possible to create one website with stylesheets to create a digital property:
Miki Pierre is a digital designer based in New York City. She practices her craft at the Lovemarks Company (Saatchi & Saatchi).
Here are some excellent resources and articles on responsive design: