Which brings us to perhaps the best review on Amazon:
"Das bard es ver gad! A've traed et far tree weex ad et werx great! A recabed et ta aw Agazad watcxers! Fave stars!!!"
Maybe the reviewer was a Scot.
I would consider that for $100 but not $500
You could easily make something like that. Half of an Ergodox would do the trick.
actually thinking about how I could use a button on mouse (middle mouse on my current one, or side buttons on some others) as a key to shift left side of keyboard to right side. That's really all I want. A way to have hand on mouse and still be able to type (though I avoid using mouse). Should be doable with autohotkey