>need an externally powered USB hub to connect really interesting stuff
>to the Pi anyway. Can you use the same powered hub to power the Pi
>through the micro USB connection and to connect other USB devices to
>the Pi at the same time?
>possible/easy to power the Pi from a combination of a powered hub &
>rechargeable batteries so that (like a laptop) it will run for a while
>if the mains power is disconnected?
yes. I believe that one of the denizens of this group is trying to