hi uwe,
thank u very much for ur reply.
its very simple.. the idea is to show x,y of a moving object. showing z (i mean 3D) is also preferable. this is primary requirement.. if there is provision to show any other parameters, that will be good. basically, i want to show position of moving objects on map in real time with 1 second update and with zoom facility. can i get sample application or code.. ?

thanks again.