The latest update for Google Maps for Android comes with two new features that make it much more useful to those with budget smartphones and limited data plans, and one that will make traveling through East Asia much easier. Google Maps now includes a Wi-Fi-only mode, where maps are only downloaded when the device is connected to a wireless network. This feature has been in the pipeline for at least a month now. Mountain View has also introduced support for storing maps on external MicroSD cards. These don’t sound like big changes, but they’re going to be hugely helpful for a lot of…

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