Best way to update customer site data in GWT app

When fetching data from server to client side in GWT application, we have to update every time period to get updates for data, I think this is not a very good method, because if they consume a lot of time and resources, just think of another method awesome :) anyone get a good and effective idea?

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You should take a look at push server technologies like Comet for GWT



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I think you should definitely take a look at JBoss Errai ( http://www.jboss.org/errai ) - a very cool and promising thing. This year at Google IO will even be showcased.



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