O2 is considered as the brand name in mobiles phones. They are serving the people with UN-matchable services in cellphones and mobile phones sector from last many years . Now a days, we can say that O2 is in the position that it can be called as bench mark for all other mobile phone companies. O2 has brought great innovation in cellphones and mobile phones. They develop a proper platform for mobiles like different version of OS. Basically O2 itself is a strong platform for the development of mobile phones and Operating systems related to wireless and mobile phones and it is right to said that O2 bring out new horizon in mobile phone arena.