Reported widely today is a new over-the-air update to Nokia's GPS-uber-utility, Sports Tracker. v2.05 (up from v1.83) brings better touch support (map zoom icons, more reliable finger swipe screen transitions), plus N79-like support for the Polar heart rate monitor and (on compatible devices) the integration/backup of accelerometer-based step counting. You can get v2.05 by going into the application and using 'Check for updates'.