HERE is a Nokia company and map system that has an Android app in Beta that is worth checking out. Aside from your standard maps, HERE also works on indoor maps of malls and other venues.
The HERE app lets you do the following:
• Always know where you’re going: Turn-by-turn drive and walk voice guidance even without an Internet connection.
• Maps that always work for you: Interactive maps of more than 100 countries that you can save and continue to use offline.
• Choose the fastest transport option: Integrated public transport maps, directions and information for more than 800 cities in more than 40 countries.
• Avoid delays: Real-time traffic and road closure information in more than 40 countries around the world.
• Plan trips before you go: Personalise maps from your phone or here.com and store all the places you’d like see for when you get there.
• Meet friends here and there: Glympse lets you share your location and what time you’ll get there by SMS or email.
Download the app from the Google Play store: https://play.google.com/store/apps/details?id=com.here.app.maps