Topic: server centric framework

I have been using JEE/PERL/PHP and other languages+frameworks for web development. I think RoR really improves productivity compared to the others.
But recently I have tried ZK and Vaadin frameworks . I really had a very pleasant experience developing RIAs just as desktop applications. ¿Is RoR going to implement a server-centric RIA approach?
¿what do you think about Vaadin/ZK? ¿do you see RIAs as the future of webapps or plain html synchronous requests?

Last edited by paucarre (2010-10-26 04:03:36)