ok. That means Airtel n Hutch have two types of data cards. One that will directly be plugged into your m/c and will have no link with mobile whatsoever. The other will route the connection from mobile to computer through bluetooth/data cable and your phone will have to be GPRS/EDGE compatible for this. My phone (Sony T610) as you said willn't be very effective in terms of speed if I use it for the GPRS/EDGE conn. So the only wireless option left to me is the normal data card of Airtel and Hutch in order to get decent enuf speed.