Basically I read this from your board layout. You have a lot of spare place and do not provide the wholes. Notice that I did not request that a second row is in place. Only the holes for the second row.
Your reply confirms my point. You want to take care of other stuff.
Basically it implies that I will not buy Arduino but Boarduino instead. Not a big deal because most people will stick to Arduino. The more anyoing part is that it also implies that Arduino Shields never fit a breadboard.
With regard to the 8u2 pins: I do not need the pins. I need the holes. I understand the point to not place lots of pins their. But I would expect an open source platform to be easily hackable. Thus I would greatly appreciate if the 8u2 pins would end at some holes where they could be soldered.
With regard to the feasibility of such a migration of course this is your judgement vs. mine. Since you are obviously successful in your market you must be at least somewhat right.
But once you move to 3.3V these arguments will break down. At this time we will then see if you finally will fix it. I hope so, because it would make breadboarding much more confortable.
Udo