To answer a few of the questions so far...
Regarding the sound amplifier:
the cutout has an angle to it that "redirects" the sounds towards you, rather than just shooting it straight to the side with a straight cutout. It doesn't increase the volume really as much as it pushes it more towards you so that is "sounds" louder. 'Sound amplifier' is better marketing than "sound redirector".
Cover:
I've only had it for a few days, and haven't been rough with it, so I can't really say how well it will hold up over time. But it seems very well put together; Good craftsmanship, no sloppy glue or anything similar. The cover is high quality and seems like it will stand up. The cover reminds me of a hardback artist's sketchbook.
Pics:
Right now my good camera has been borrowed by a relative on vacation. I can take some crappy camera phone pics if that will suffice.
Weight:
Its almost as heavy as the iPad itself, so it does add a bit of weight when carrying it around. I was using the Apple case before, and I can definitely feel the difference when I hold up the case with iPad when reading. The case is really snug (so far), so its a pain to take it in and out. I wouldn't recommend this case to people who like to hold the iPad without resting it on your legs or something. Its definitely a more looks over function type of case. It takes away from the thinness and lightweight of the iPad, and it doubles the thickness. But its really nice looking, especially when you have it propped up for movie watching. Definitely an eye-catcher.
Binding:
The binding and cover are very rigid, and the case doesn't flop down, like some people with Dodocases were complaining about. But I haven't done much typing with it and I've only had it for a short time, so I can't say how well it will hold up over time. But so far no wobbling.
Invisible Shield/Wrapsol:
The case is very snug so I don't recommend a fully body shield; maybe if you left the iPad corners uncovered it would work, but otherwise no.
Overall, I definitely recommend this one over the Dodocase, as it seems to solve a lot of the problems that people had with the Dodo. Rubber is much better than foam for longevity. It 'hides' the iPad much more because the iPad is fully recessed in the case, unlike the Dodo, which only really covers the corners. Complaints that I have so far are that its pretty heavy compared to other cases, the thickness of the case gets into the way of typing as I need to angle my wrists more. The clasp mechanism is tight, but since its basically a ribbon, I have to wonder how well it will hold up over time.
One workmanship issue that I have is that it came with a tiny chip in the top layer of wood. Its where the back of the iPad rests so you can't really see it when you're using it, but its still a little disconcerting, considering the case is on the expensive side compared to others.
Any other questions feel free to ask.