Cristalin, I sent you a PM with more information but I have built a mobile job and GPS tracking program for blackberry's. I am a new company and I am in the process of getting my web site up and running(html is not my forte). You mentioned that you wanted to keep the GPS positions on your servers, I have web services that you use to get the data into your systems. Also if you need something custom I can create that as well. This is a commercial product already being used, let me know if you are interested! Thanks.