damn, MS could of do the better job....
Do you know if there are any potrntial memory leaks if I will apdate location of the pushpin with the rate that GPS sends its data? its like 10 times a sec...

Also kind of similar question if I have pushpin with the sahpe of the triangle how can I rotate it to show the direction of the movement and how can I highlight the road where I have drove? Does MP supports vector overlies like google maps?