Apple encounters problems with iPhone 2 ?

According to ElectronLibre , Apple is still encountering difficulties in developing the second version of the iPhone.
According to the latest news, production is supposed to be be in the course of the year without any other target date. The problems are still the same, related to autonomy for 3G. But it is difficult to perform miracles without increasing the size of the battery and, therefore, the device -- which is already not small.
If the information is confirmed, one of the most anticipated items due at the WWDC will not be delivered.