Just the navigation rules can simplify development, so when you add in all of the other features I didn't have room to touch on in this article, you have a real winner here!
就是导航规则可以简化开发，因此当您能添加本文中未能谈及的所有其他功能时，那么您就是一名真正的赢家！
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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.