I'm a little curious as to your riding habits. Do you anticipate the need to go for a ride, come home, charge quickly and then go right back out again? I ask because in my situation, when I arrive home I'm staying put for the rest of the day. Charging slowly via the wall plug is just fine for my situation, so I'm a bit curious as to why you feel you need a quick charge solution for your residence.
Now, I can imagine a couple scenarios where you would want such a thing. Ride to work, ride home, charge while you change clothes, ride out to the club/restaurant/squeeze's place. That sort of routine. I'm just curious, as I wonder if that would happen often enough to justify the expense.
As for the adapter you listed: That looks interesting. I'll let the more knowledgeable members speak up, but I don't know if it would give you significantly faster charging than just going into the wall.