I spoke to them today as well and they were very helpful! Apparently it is an easy thing for them to not put the logo on there so by all means call them to ask them not to if that is your preference. One thing they did say is that because they wanted to show the concept in as much detail as possible some things look larger than they are. So the logo is not as large as it appears to be. Similarly they say the profile of the case is close in width to the apple bumper -- something like 3/32 of an inch on the sides. There Is a lip also on both sides so that the screen never rests on a surface, and that lip is a little more than the lip you get with the apple bumper.
The moral is that we won't really know how this case looks until we get one in our hands, but the rendering makes it look bulkier than it is in real life.
I too was in the four thousand order range and really hope to get it before august but there are a lot of orders ahead of me!
Can't wait to see it in the flesh!
Oh and they did try to test it with multiple headphones and dock connector cables and they are hopeful it will work with many or most of them, but of course there is no way to know that for sure until we get our hands on one of these cases.