Check this out - a keyboard you can buy right this second, where every keytop is a separate, individually programmable OLED screen. This is without a doubt the most customizable keyboard that exists.
Keyboard:

Configurator:

http://www.performance-pcs.com/catal...ducts_id=23205
Keyboard:

Configurator:

http://www.performance-pcs.com/catal...ducts_id=23205
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