Use google maps offline in an app

Question

I\'m trying to develop and app that overlays some information on a google map.

I was wondering, if it is possible to cache at least a portion of this map, so that it

Answer 1

A status update in 2016:

Things have moved on in OSM world, and you can now get maps that are at least as good as the ones Google Maps provide using various SDK's. One of those is Mapbox Android SDK, which is vector based, and allows you to both cache things offline, and use them with a data connection.