POP:
Smart phones take up of a vast market share in the mobile phone business.
For example, IPhone 4 is very popular nowadays, in Hongkong, eight or nine people use IPhone 4 among ten .
Smart phones provide thousands of useful application which can be chosen by mobile phone owners according to their own habits and needs.
IPhone4 keeps more than 100,000 application in the apple store.
Besides, the software and hardware are the most advanced one in recent mobile system.
IPhone4 uses the ISO system while other advanced smart phones use Android system. Both sorts of system is the two and the only two most amazing mobile software.
POD:
Iphone4 has the unique system called ISO which is only operated in the apple products.
Iphone4 has a extremely screen resolution which uses Retina.
Iphone4 is designed by Apple, which is an irresistible attraction for apple fans. Iphone4 has a more elaborate and slap-up appearance.
Iphone4 will not devalue as fast as other smart phone with Android OS because the new Iphone will not be released frequently while the phones with Android come into being every week.
Lastly, if you do not have Iphone4, you actually do not have it.