Here's my setup: Unibody Macbook Pro connected to 4-port bus-powered USB hub. Plugged into the hub is a Griffin Powermate, a Logitech Marble Mouse, an EyeTV Hybrid, and an iPhone Dock. The problem: When I get home and plug the Macbook Pro into the hub, the devices don't connect because they don't have enough power. I know this because the powermate's light pulses as it does when the computer is asleep, the EyeTV software doesn't start, the mouse doesn't work. The solution I've found: Put the iPhone in it's dock. Instantly, the other devices connect. Take it out and they're still connected. Unplug the hub, plug it back in, and they reconnect fine. But if the computer has been disconnected for a while, then it needs the phone before the other devices work. Weird huh?