While we're rethinking the human interface, could we please stop staggering typing keys and put frequently used keys like carriage return and backspace under strong fingers? [1]

I was disappointed to see at the end of the 10gui video a concept keyboard with staggered keys and with backspace way over in the corner. If we can't move keyboards past the constraints imposed by mechanical typewriters, what hope do we have at changing the mouse paradigm?

[1] Typematrix is the only keyboard maker I know of that currently does this while still building a relatively standard keyboard (and something that could be integrated into a laptop).