According to the distributor KT Telecom new iPhone be called 4GWill have a processor dual core, Display OLED, A more powerful graphics chip, the removable battery and a completely new design.
Finally, the first phones will be distributed in April / May to test with customers.
Considering the energy problems of the phone, the changes are so important to me seem impossible. Moreover, the presence of a removable battery is against the policy Apple. They just built the batteries in laptops too.
Now there are rumors a lot about this phone, network I read that even in France say rumors of an iPhone 4G in May ... but I think voices are unlikely.
We'll see what awaits us in the spring and summer, the curiosity about this phone is always high.