a few months ago I started with Vaadin. First just for fun but in the meanwhile I already created some nifty web applications.
On my small blog
http://www.gerrist.nl I write a little bit about my projects and my goals.
Vaadin is really fun to use. A few years ago, I made the
TKIRC IRC client on top of IT Mill Toolkit 5 (the previous Vaadin version). Now it’s just ported to Vaadin6.However, its eems like some features have stopped working since the upgrades :). Anyway, I think this is a good demonstration of where/how to use the server push mechanism. Also DCC send and receive still seem to be working (atleast on ipv4).