这两个应用程序演示了许多专门针对小屏幕设备的尖端ui特性。

Both of these applications demonstrate many cutting-edge UI features specifically targeted at small-screen devices.

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诚然，这个小应用程序只是比Hello World稍微有用一点，但是它却演示了与Varnish和其他反向代理协作所需的全部操作。

Admittedly, this tiny application is only slightly more useful than Hello World, but it demonstrates all that's required to cooperate with Varnish and other reverse proxies.

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