I have lost 2 mobiles in last 6 months and one a couple of year back. Have also lost a charger once. Main problem of loosing the mobile is to retrive all the phone numbers stored in the lost mobile. With the usage of mobile we loose the habit of recording the phone numbers in diary, so retriving the numbers is a bigger hassle than getting a duplicate SIM or a new mobile. Another problem of loosing a mobile is that since all the known numbers do not get recorded in the new mobile, when we get a call, for some days, it is difficult to make out if the call is from a known person and needs to be answered or from a tele marketing company that needs to be ignored.