Apple System Profiler says it under Devices and Volumes:
"USB Information"
"USB Bus 0" -> anything I have connected to either usb port on the PowerBook
"USB Bus 1" -> (nothing)
"USB Bus 2" -> Bluetooth HCI
Why isn't "USB Bus 1" being used?
My conjecture is that Apple might've put a USB port or two on the right side of the 12" (like on the 17") but realized there wasn't any room.
Anybody know?