I've used these since '98 (and my first one is still in use, through and ADB-to-USB adapter). For someone with pinky pain, they have the likely advantage that t

I've used these since '98 (and my first one is still in use, through and ADB-to-USB adapter). For someone with pinky pain, they have the likely advantage that there are no long stretches (backspace, return) or tight curls (control/alt/meta). As a vi user, I map Escape to the Kinesis' ‘Delete’ thumb key, symmetrical with Enter, and also swap the up & down arrows to match J & K. Emacs folks will have analogous suggestions.