Before going for EVDO service, do some research on this. Since you are a broadband customer till date, you will really feel sorry later. The speed of evdo is very slow. Also it is a CDMA service, you can not unlock the modem for another sim / service. Better go for any unlocked modem, and use any GSM sim. The gprs charges are not much expensive. Also you can use 3G service, if you are ready to pay more.