I love this concept design by Gonglue Jiang. As laptops get smaller we also lose the number of USB ports. I know that I have to unplug my cooling pad to plug in my camera, but perhaps those day would be over with the Infinite USB ports. The daisy-chain idea is a very interesting concept, and could power a few devices when the first usb device was an exertanl power supply. The only flaw I see is the stress that would happen without proper support on the chain of ports. This could eventually damage the internal motherboard. But I love this idea!