you can read about other features provided by icefaces at my blog mentioned below.
ICEFaces Ajax Push is an excelent technology to build real-time web application, like auction or bidding systems i.e. This part of the framework is a really powerfull tool in the real-time enterprise web application (where there are events on the server or clients that trigger asyncronus partial update to the other clients connected). Also, the mobile we development is very good implemented in the framework.
ICEfaces is one of the most advanced AJAX frameworks that is based on JSF. It delivers the best of both worlds (AJAX, JEE) and allows you to develop in pure Java. It is one of the best integrated frameworks and supports a wide range of app servers and IDEs.