Fast, detailed and completely offline maps for mobile devices is a part of our app too.

快速，详细，完全离线地图的移动设备是我们的应用程序的一部分了。

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The other big new feature is that you can now view maps offline.

第二大亮点就是，现在可以离线查看地图。

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The offline mode will work by creating a cache of the maps you load while you have a signal.

离线功能是利用当你有信号的时候下载的地图缓存来工作。

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If you truly need offline maps on iOS, alternatives like Nokia Here may be better for the task.

ENGADGET: Google Maps for iOS hands-on Mobile

Lonely Planet has a bunch of iPhone City Guides with things to do and see marked on offline maps.

BBC: Lonely Planet��s travel technology predictions for 2011

An update to Skobbler's Android app is finally adding the turn-by-turn directions and offline maps, which have been offered on the iOS edition for sometime.

ENGADGET