I knew OpenLaszlo was working on an AJAX implementation for a while. But when the FABridge was announced, it was a surprise.
This means that you can now write applications in OpenLaszlo that will render as DHTML and use AJAX for communication. Single set of source files can produce both Flash and AJAX versions! Without you needing to figure out browser compatibility issues and such. The implementation is still in progress, but the LZpiX demo is quite cool. It ran very slow on IE for me and did not run at all in my Firefox (requires 1.5), but it is still great for something so young.
Flex, on the other hand, has Flex AJAX Bridge now. Ely has written a nice piece on how the whole thing came up. FAB allows you to use JavaScript to control Flex and vice versa. It uses ExternalInterface method for AS-JS communication, but solves most common problems of the approach and makes it easier to develop RIA.
The Flexcoders and RIA-India mailing lists are abuzz with FAB, and the Laszlo mailing lists are gearing up.
Giving you a heads up! These two developments are going a long way in web application development!
open lazlo never heard of it sounds neat will try it