How to speed up development with GWT Hosted Mode

We are working in a big system to control assets, and we are having problems with the hosted mode in Linux, its too slow.
What we are doing and enplaning on this article how to do it, is speed up compilation of the module and run the application the Firefox 3.

This is out module file

<pre>
<pre><?xml version="1.0" encoding="UTF-8" standalone="no"?>
<module>
	<inherits name="com.extjs.gxt.ui.GXT"/>

	 <set-property name="user.agent" value="gecko1_8" />

	<stylesheet src="Index.css"/>
	<entry-point class="br.srv.silt.client.Index"/>
	<extend-property name="locale" values="pt_BR"/>
</module>