I have skype and msn active and they both get updated with my location in my status messages. It doesn't seem to work very well though. It will update my status once and then stay the same for days even if I have driven 300 miles and stayed there for the weekend - even rebooting the phone doesn't get it to recheck the location.

Loading up ovi maps will get gps sync pretty quick and show me what street I am on, but IM location still doesn't change. I have it set to street level but rarely see more than the city I am in.