I hacked my ipaq cradle to provide charging... If I let the battery drain completly then try to charge/sync, I get errors out the wazoo complaining about power surge (or something like that) on the usb port. I then have to unplug the hub and plug it back in (happens on the mobo usb ports too, I need to reboot to make them work after that) . I can't imagine trying to power a whole friggin empeg with it