Addition:
Today, after several days of use, I can add the following:
The adapter works as it is, with the Apple products. My I-Pod will load faster than on PC so.
On my Nokia E52 it does not works!! This is because, as the device detects a connected charger. As I found out, Apple recognizes a Ladegrät mind that abuts a not the USB specification corresponding levels on the data lines of USB (via high-impedance Spanbnungsteiler in Wicked Chili). The Nokia other hand recognizes the charger when the two data lines are connected to each other with a resistivity of 0-200 ohm.
I soldered a 150 ohm resistor in the Nokia cable, and now even my E52 is loaded on the adapter.