ReadWriteWeb

While the iPhone is clearly the media darling of mobile devices in the US, there's no denying that Nokia's handsets have saturated the global market. As part of that global strategy, the company just announced free walk and drive navigation for 74 countries in 46 languages. Today's release of the third iteration of Ovi Maps is similar to Google's maps for Android in that the service offers free turn-by-turn voice guidance. Nevertheless, there's one important catch - maps are cached offline for future use. ReadWriteWeb caught up with Nokia's VP of product and location, Christof Hellmis, for a look at how the company is saving device owners precious battery life.