It arrived today. The instruction sheet says this:
"Thank you for purchasing the TruePower U-Socket! U-Socket is a duplex AC receptacle with built-in USB ports that can power any device that is capable of being charged via USB, including iPods, iPhones & iPads at their full charge rate. Designed to replace a traditional 3-prong AC wall outlet, U-Socket eliminates the clutter of AC Adapters that hang from the wall, stick out & take up space in your home or office. In addition to keeping things neat & organized, U-Socket reduces your energy costs dramatically thanks to its 5-star energy efficient design that auto senses the required wattage & only outputs full power if something is connected to it."
I've examined it and read the instructions, and it installs exactly the same as any other outlet. The stuff that's behind the plate isn't much bulkier either - I don't think I'll have any trouble fitting it into the box in the wall. I can't install it right now because I can't turn off the power right now, but I will install it tomorrow and give a full report.