Comment 10 for bug 464429

Update:
    Works now!!!

Steps taken:
1. Upgrade Firmware of Huawei E220 (latest Firmware from 2007 ;-)
    http://software.a1.net/vmc/

2. Installed usb-modeswitch software package

3. Enabled Huawei E220 in /etc/usb_modeswitch.conf with these three lines:

    DefaultVendor= 0x12d1
    DefaultProduct= 0x1003
    DetachStorageOnly=1

That did the trick.