Fabio Marconi, I'm pretty sure it was charging; that wasn't the issue. The issue was that it was preventing other usb peripheral devices from working.
I've recently reinstalled, and I'm running Maverick now. The iPhone does not prevent other devices from working on Maverick. lsusb lists it as follows: Bus 001 Device 006: ID 05ac:1292 Apple, Inc. iPhone 3G -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/684597 Title: USB devices fail to initialize/start when iphone plugged in -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs