This design concept showed up on Yanko Design. I was taken not only with its simplicity bt worth its utility as well. Yes there are power concerns to take into consideration and you can only chain so many things in a row before the 5 volts devices are expecting to be there just can handle the load. But the simple and quiet brilliance of the design shines through.
I hate traveling and not being able to plug what I need to in, this device would solve that in a piecemeal fashion what a USB hub could solve for a larger set of devices. And while yes its only a concept at this point, and it may never make it anywhere i still like looking at these awesome and simple designs.