Putting Connectors you may use while playing on the sides of the device isn't exactly genius, e.g. having the power connector there would make it harder to get a good grip while playing.
I am very happy that so much people want a Ctrl-Key, too. I wasn't sure how many people actually need one but just think about the people who want a proper SSH-device on the go.
I think all the connectors are very well placed.
I especially like the placement of the USB-Host, as when you plug-in for example a BT- or storagestick it won't constrain usage in any way. On the other side you wouldn't be able to open the lid completely. So it's up to the developers to build it
1. not fully openable so the lid can't touch a normal-sized USBstick
2. fully openable so the user has to take care himself
I prefer option 2.
And please, think about tablet mode, it would add so much usability for all applications that just need touchscreen input.
edit:
Another thing: As many others, I've been thinking about the touchscreen. Having played a bit with the DS I guess it will be not that easy to use it when you need both keyboard and mouse (due to the different angles).
My solutions:
As said, when having mouse-only apps, tabletmode
When having mouse/keyboard-apps, a special stylus would be the best solution in my opinion. use a small piexe of velcro which you tape around the part of your index finger which is nex to the tip so the stylus (which should be 4cm max) is over you tip but does not touch the keyboard while typing (when typing with your fingers, not thumbs, while thumptyping it wouldn't hinder anyway).
so if you need to to something on the touchscreen you will not have tu pull out the stylus, so somethin, put it back in and then continue typing but just make a quick movement of your hand, touch (with the accuracy of a stylus, I can't imagine using normal linux applications on such a high dpi-count without a stylus with a very small tip), and continue typing.
You wont have to include it though, I will build it myself, but I think it's rather convenient.