Google Maps offline for Android is available today in version 6.9
 

Google showed off offline Google Maps at its event earlier this month, and now during I/O it's ready to turn the feature on. We've got a couple of video trailers for offline Google Maps here (embedded after the break), users with Android 2.2 devices and above should keep an eye on Google Play for the new version of the app. Also new in this version is the Compass Mode for Street View shown off today, that lets you look around places as though you were there based on your device's gyroscope and even go inside. We're not all seeing it on our devices yet, but the updated version has already been spotted on a Galaxy Nexus or two.

http://www.engadget.com/2012/06/27/g...fline-android/