I agree. I am building something similar for a client but I am using node+mongo+backbone. I fetch the 'entire' site sans images and navigation is instant except I place loading anims where an image will show. Obviously not an architecture that suits all needs but very useful for a wide range of semi-static sites. In a way I feel this architecture is like the new 'flash': let the users wait for a bit while everything loads and then let them navigate very fast. (I also use require so some views may need adittional async loads like html templates or js but they are soooo small that the extra ms don't matter)