There is no big problem with mobile websites build using GWT, it generates standard javascript + html. There is some libraries that can help you build mobile site, like http://code.google.com/p/gwt-mobile-webkit/. And you can write any widget you wish.
But keep in mind that GWT will generate very heavy target files, sometimes few megabytes long. So if you target audience uses GPRS for accessing your site, it could be problematic for them.
There is also other web-framework, that are GWT based: http://vaadin.com/home. It have great collection of UI components, and currently authors are extending it to be more mobile friendly.
You could also try a different route with Context Framework. I think it suites better to mobile web developing because it is more lightweight solution. I have made a journey planner (in Finnish) with it and it was tailored especially to touch screen phones. You can find it here.
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使用GWT构建移动网站没有什么大问题，它生成标准的javascript + html。有一些库可以帮助您构建移动网站，例如 http://code.google .com/p/gwt-mobile-webkit/。您可以编写任何您想要的小部件。
但请记住，GWT 将生成非常重的目标文件，有时长达几兆字节。因此，如果您的目标受众使用 GPRS 访问您的网站，这对他们来说可能会出现问题。
还有其他基于 GWT 的 Web 框架：http://vaadin.com/home。
它拥有大量的 UI 组件，目前作者正在扩展它以使其更加适合移动设备。
There is no big problem with mobile websites build using GWT, it generates standard javascript + html. There is some libraries that can help you build mobile site, like http://code.google.com/p/gwt-mobile-webkit/. And you can write any widget you wish.
But keep in mind that GWT will generate very heavy target files, sometimes few megabytes long. So if you target audience uses GPRS for accessing your site, it could be problematic for them.
There is also other web-framework, that are GWT based: http://vaadin.com/home.
It have great collection of UI components, and currently authors are extending it to be more mobile friendly.
您还可以使用上下文框架尝试不同的路线。我认为它更适合移动网络开发，因为它是更轻量级的解决方案。我用它制作了一个旅程计划表（芬兰语），它是专门为触摸屏手机量身定制的。您可以在此处找到它。
You could also try a different route with Context Framework. I think it suites better to mobile web developing because it is more lightweight solution. I have made a journey planner (in Finnish) with it and it was tailored especially to touch screen phones. You can find it here.