Nice.
Personally, I am packing one of these...
...and one of these.
This combination gives me 4 surge protected AC outlets and also provides a protected data port for those hotels that still don't provide wireless access points. I do have to pack two devices, but they are pretty small, the sockets are generously spaced, and the prongs/cord fold up neatly for packing. All I am missing are the USB power plugs, but fortunately my laptop has enough ports for me to get by.
Very cool idea though.