It looks like single page javascript ajax/RIA application is finally (6 years after google showed the world gmail) l becoming a buzz word, so I wanted to again over the performance benefits of single (RIA) apps:
- An average "weight" of a page of a typical web app is 500kb, an single page app pages in my framework are 2.5k! That's 200 times smaller.
- Event an optimized page using css sprites will have dozens of HTTP requests, while a single page app will ideally have just one (plus some new images if present)
- Since now you are hitting the server much less, like 200 times, you actually save a lot of server resources...
I understand that the old school web world is scared of JavaScript development, JS is here to stay, so get used to it!