I just came across Adobe Lab’s AJAX offering, titled Spry. Creating dynamic applications seems to be a breeze for non-programmers and time-saving for regular programmers. This is a completely client-side set of libraries with no dependency on any other downloadable or server side component.
A good set of demos are provided alongwith code samples that show how easy it would be to deploy Rich Internet Applications that can be rapidly developed by mashing up components from Spry to come up with your final RIA. Quite a few visual effects top up the icing on the cake. Spry also has pre-built widgets which you can customize out of the box. Quite a lot of other widgets that aid in form validation are also provided making it easier to validate form input too.
Just to refresh my memory, I checked out OpenLaszlo, another open source framework for RIAs, the last time I saw it, it seemed to be relying overly on Flash, but on my latest visit, found that there was rendering in DHTML too from version 4 onwards. Though I am not a critic of Macromedia Flash, er Adobe Flash, there are many things that can be achieved without going for plugins like Flash, which ultimately lies with the way the designer designs the system choosing whether or not to implement plugins for simple functionality.