Did you notice the layout of the punctuation characters, especially with the shifted number keys? E.g., the parentheses on shift-8 and shift-9 (instead of shift-9 and shift-0). Is that a back-tick sharing the same key with the "@"?
I especially like the single-quote on shift-7, and the double-quote on shift-2. It's making me reminisce, in a you've-come-a-long-way-baby kind of way, about the layout of my Atari 1200XL, from twenty-five years ago.
With all those mysterious keys jammed into such a dense package, it looks like something a space cadet (or an APL programmer) would use. Or maybe something stolen from the set of "The Matrix".