Key placement

I'm not terribly satisfied with the location of the vowel keys on the Sidewinder. I really like the Sidewinder in general, and of course on Day Nine it's difficult really to estimate how well I'm going to end up liking the keyboard layout - but getting my thumbs onto the lower row of letter keys feels very cramped and uncomfortable.

So here's my idea: add some very flat keys or buttons below the spacebar, right where my thumbs want to land. Those four could even simply mirror the CVNM keys currently mapped by Plover to AOEU. At most you'd need an Arduino and USB port to get the keystrokes into the computer, and if the keys were flat enough they could simply be glued onto the nice little ergonomic shelf under the Sidewinder.

It's a thought.