I've got stunned by the argument "mvc is complex and costly" but at the same time I've found their solution - pagelets - very interesting because you don't have to learn anything new and, at the same time, be able to build complex systems because pagelets, as they say, are discardable. Is there anyone already using Pagelets? the project is open source. you can download it from sourceforge. there is a link in their site http://www.sybrain.com
I like this bit: The first two items in the list I have no problem with but isn't ajax just the convergence of javascript, html and css? I've never used their system. Actually I'm struggling to understand the idea behind these pagelets. There isn't really a lot of information.
AJAX: Asynchronous Javascript and XML It's used with XML to pull data from the server without refreshing the page, that's how Gmail works.
I'll put it another way, if you know AJAX you'll automatically know javascript. You'll also probably be using XHTML, just a defined type of XML, so you can cross this off the list as well.