Web applications lack the rich user interface provided by Desktop applications. They tend to be less responsive compared to Desktop products. Web applications employ inherit request/response cycle to build pages which in turn creates less natural and not so dynamic/responsive pages. It was always been a challenge for web developer to built slick, rich and dynamic web applications. We can feel lag... But it's no more now. Try Google Maps. Use the cursor to zoom in/out. Don't you feel the difference? Do you think it does post back for each request? Observe, everything happens instantly with out a page refresh. Wondered! AJAX does it all.
