Another quick update for everyone! I've had a few requests for the ability to alter the optional shutdown delay from 20minutes to a user-adjustable value. The switches will now have their optional shutdown delay set within the Pi script. At installation you will be prompted to enter your preferred delay (if any). You can change it at any time by modifying one line in the script. Also, regarding the USB hub I mentioned as a possible stretch goal - I have finished a working prototype of a high-current, 3-port hi-speed USB 2.0 hub that works well with the Pi. I designed it from the ground up and it draws power separately from an additional USB power line. This will allow the hub to draw power from the remaining port on the dual-port switches in this campaign or for desktop applications it can draw additional power from a USB wall adapter (like for a phone). In the interest of getting the switches from this campaign out to the backers in a timely manner, I will be producing the USB hubs shortly after this campaign as an add-on module and they will work with any of the dual-USB switches in this campaign. Thanks again to all the backers!!