I'm in the beginning phases of a project that uses a flex front end with a java/glassfish back end. I'm curious which technology is better to connect the two, WebORB or BlazeDS. At first glance WebORB seems a little bit easier to deal with, but BlazeDS has a larger support community.
I can't say much about WebORB because I've never used it, but I have used BlazeDS extensively and it is a solid product. It's relatively easy to install, and it's well documented.
As an added benefit, it's an official Adobe open-source product there are engineers and testers that are accountable for fixing community issues :)