Tardy update:
The duck smoked up pretty nicely.
I brined it in a salt/white sugar mix for about 3 hours. Rinsed and patted dry and applied a generous amount of Meathead's Memphis Dust (a great all around rub). Smoked around 225-250 for about 3 1/2 hours (memory is a little sketchy on that important detail, but the flesh was pulling back from both leg bones). I used oak and lump charcoal.
Anyway, the taste was very good. It's not chicken. A little sweeter, and a little fleshier. I cooked to about medium well, which is more than many do duck. The 3 little kids (ages 5, 7, and 8) who tried it loved it. It is a messy bird though. I'm not terribly good at carving to begin with, but it comes apart pretty messy. The skin is thicker and the ligaments stronger than a chicken. You want to slice the breast into medallions crossways, and make sure a layer of skin/fat stays with each bite of meat.
On a taste scale of 1-10, where 10 is the most awesome ribs you've ever had, 5 is a grilled hotdog, and 1 is vegetarian lasagna, I'd give it a 7. It's too messy (for my skill set) to serve to company though. But it's definitely worth trying, and I'm sure I'll do it again someday.