Thanks for the link, although I'm already sorted in that respect. I just use Fritzing, nice and clean design, simple to use, yet still allows the design of custom components. They're across the water from me as they're in Germany, but I like the convenience of being able to design in Fritzing and have my designs be fabricated by them too. Really looking forward to that, seeing my own circuit board for the first time (hehehe). Although granted, it will be very basic stuff I design at first 
Your suggestions are cool, and a lot of pople will be very pleased with them, but commercial developers still won't be because they're still using pre-arranged design. I'm lucky in that I know how to design, so your idea is no different to me than what Johannes is currently doing, where he's creating an Axoloti Control board with display and butons. I will buy one for sure, as will most Axoloti users I can imagine, but it can never get into a completed product I design cause it would be physically impossible to match it up to the physical aesthetical design of the products I have planned.
So to me, your idea is exactly the same as Johannes upcoming control board, it's a convenient way to help development that can also serve as a completed unit for non-commercial products.
Something you said though, reminded me about something I forgot to mention for the Axoloti Store. With an un-populated core available with breakout boards, two other obvious things to stock in the Axoiloti Store would be keybeds in various sizes and lengths, and to stock mod/pitch wheel units. You would be able to go to the Axo store and literally buy a complete synthesizer by adding the relevant selection of products to the cart and clicking the buy button.
Yeah I know ... I shall say no more but I just wanted to add that because I forgot it in the previous post.
But that would be true Axoloti, wouldn't it, to be able to go to the Axoloti store, the one stop shop to build whatever the hell you like (with both personal and commercial users in mind) 