I really like the thinking that’s gone into the design of Github, as shown in this presentation. It’s not really about responsive design as we commonly know it, but boy, is it a great deep dive into the importance of URLs and performance.
A superb post by Dan on the bigger picture of what’s wrong with hashbang URLs. Well written and well reasoned.
James follows up on his previous excellent post on hashbangs by diving into the situations where client-side routing is desirable. Watch this space for a follow-up post on performance.