Recently, Google Widget Toolkit attracted attention of web developers from all over the world. GWT is a great technology for AJAX development actually. It helps to get rid of many head-aches associated with cross-browser development, user interaction and development cycle.

The library provides unprecedented possibilities to build Web 2.0 applications with high level of interactivity. And there is a trap.

Often, the user interface of web-applications is simpler to build than desktop UIs due to two factors.First, the HTML/CSS ecosystem provides for a great number of tools to easily express designers vision.
And there is no need to build/run/debug cycle for the web-pages. Second, HTML provides for a significantly lower level of interactivity that is encapsulated by browser. So developers don’t need to debug each.

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