Specifications, Pricing and Availability
For space reasons I've condensed Newer Technology's specification list by removing a large list of compatible electrical boxes. You can see the full specifications list on the Newer Tech product page.
Newer Tech gives us quite a bit of information on their specifications list. Everything is pretty much standard for power outlets with a bunch of codes and specifications. For the unique part of this product, the USB portion, we see that the power provided is 5.2 volts at 2 amps. This is the power required for Apple's iPad products and what is considered a 'quick charge' for smart phones.
The NewerTech Power2U does not have Ground Fault Circuit Interrupter (GFCI) capabilities, but you can install the unit downstream from a GFCI plug like I did today. This is somewhat important if you are installing you unit in a place where water is present. I wouldn't recommend replacing a GFCI unit with a Power2U and in many places building codes might not permit it.
Finally we have pricing. A single unit costs $29.95 and you can even purchase in large lots. There isn't much of a discount when ordering in bulk, though. All three color choices of almond, ivory and black cost the same.