JPolite - is a lightweight front-end web portal framework based on jQuery.

Sometimes I feel there are more frameworks than any useful implementations of them

Wouldn't it be nice to use this framework for business web apps! Quick and responsive interface, easy to construct layouts around complicated business logic...

Not, actually.

A surprisingly large part of my enterprise prospects/clients have javascript switched off completely, and a a large part of them still use IE6!

It is tempting to ignore a dinosaur client who is still on IE6, but when the dinosaur happens to be a top manager at a large bank -- that makes you think.

As a result I am minimizing/eliminating JavaScript and sticking to simple html forms. Hell, I even have replaced all PNGs with GIFs after a IE6 user complained he couldn't see the charts.

It is a pity, of course, but business users' environment is a bit different from consumers' one.

The next big question: is it search engine friendly? Or are we going back to a different kind of flash based front pages?

Pretty cool.

I've never been a fan of these full-JS layouts though, they chug so hard if the browser isn't Chrome!

Personally if I was gonna go for this kind-of JS framework thing I'd use EXT JS... http://extjs.com/products/extjs/

didn't get a chance to look at it too hard but it doesn't seem to support back button, which is a pain in the ass

I'm using javascriptMVC ( www.javascriptmvc.com ). Please check this framework out to build the community of users! Thanks :)