Plenty of Apps that have the maps built in.
The Ipad 3 does support Glonass.
Apple - The new iPad - View all the technical specifications.
iPad 3 I was not sure of concerning Glonass; I was only speaking to the question of Google Maps and my experience on the iPad 2 and iPod Touch w/Emprum, and Android phones/tablets.
Google Maps for Android is a superior experience to Google Maps for Apple, with cached maps capability, measuring, 3D'ish views, etc. I'm sure there are apps for Apple that will best it. I'm guessing when iOS 6 comes this fall that Apple's maps will equal, if not best, Google Maps !
Good to know iPad 3 supports Glonass.
