Fantastic idea, and I got excited when I saw this post, but it looks like some (read: most) devices won't work with it.
From their product FAQ:
#15. Can I use any laptop computer or cell phone with the pad?
Yes. The pad will work with any WildCharge-enabled mobile device.
#17. How can I know if my laptop computer, PDA or cell phone is compatible with WildCharge's pad?
A small WildCharge mark (typically, a sticker) is placed on each enabled device, indicating that the devices are certified to work with WildCharge pads.