So I got the adaptor, and I'm a little underwhelmed with it. I expected this to be something that I could use to charge my accessories while my PS3 was turned off.
But results are mixed. It does charge my Bluetooth Headset (The Official PS3 one, for those wondering), and it also charges my Panasonic 3D glasses.
However, it does not charge my PS3 controller, Move controller, Navigation controller, PS3 Wireless Keypad, iPhone, or PS Vita.
I also noticed someone earlier suggested that even though my device may not respond to the hub while connected, it is still being charged. So to test this, I took my iPhone and connected it. No response, as expected. Then, I looked at the battery percentage. It was 90%. I let it sit there for a couple minutes and came back to check the battery percentage again. It was 87%. So I don't think this hub is charging devices that don't respond to it.
Keep in mind, I'm only talking about how it works when only connected to an outlet (while the PS3 is off). Everything works just fine when the PS3 is turned on. It basically adds more available USB ports to your PS3, but that's not necessary for me. I think I'll return this thing tomorrow.
Hope this was able to help anyone looking for more info on this thing.