例如，大多数多点触控屏幕的iPhone应用程序都将导航键放在屏幕顶部或底部，而在nano上却没有这样充裕的空间。

For example, whereas most multi-screen iPhone apps feature navigation buttons at the top or bottom of the screen, there's no room for such niceties on the nano.

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现在可在所有网页上使用四向导航；按下导航键的某个方向，选择框将会移动到这个方向上的下一个链接上。

Now using four-way navigation on all pages; moving the joystick in any direction moves focus to the next link in that direction.

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