I think what 'teyc' meant was that Android is the only platform that offers free turn by turn navigation among the major platforms.
Nokia has provided this recently with their version of Ovi Maps as well (not sure if it's free on all S60 devices). So it is possible that the Ovi Maps & Bing Maps integration may include bringing the free turn by turn navigation to Windows Phone 7.
Nokia has provided this recently with their version of Ovi Maps as well (not sure if it's free on all S60 devices). So it is possible that the Ovi Maps & Bing Maps integration may include bringing the free turn by turn navigation to Windows Phone 7.