@ sa_kiranMay b the app for iPhone is still not that good. May be u cud wait for few updates to it for it to become useful for u! @ Misusing.....I agree with Manu here. Or that i havent completely understood the modus operandi u guys have mentioned. Coz its very logical to me - if ur cell is stolen, u will atleast take the pains to de-activate ur sim. And i dont think Jaxtr wud work in the name of a de-activated SIM.And 1 step further, u still have the option to get the same number on a new sim. So the moment u register on Jaxtr with that same number, on ur new phone, automatically the other phone will lose that account.It obviously wont support 1 particular number to operate from 2 different devices.