If you want a better Arduino, design one. You don't have to sit back and wait and then
grumble that its not what you would have done!
If you come up with a good design, evangelize it, kickstarter it, talk to Arduino, see
if its got wings... After that you've earnt the right to grumble methinks.
Rather than fret about such issues, remember the strengths of open sourced designs
that allow anyone to build on the work of others.
[ slight rant over ]
It struck me this thread was too negative and "us and them".