Now the first OLED keyboard goes on sale! The Optimus Maximus from Lebedev are now available!
Art Lebedev is offering four configurations, three of which can be pre-ordered right now. The configurations include 1 active OLED button, 10 active OLED buttons, 47 OLED buttons and 113 OLED buttons to choose from.

It would be pretty amazing to have all of the 113 keys as active OLED buttons. But, for this you will have to shell out a whopping sum of $1,560!
Some Video about the Boot sequence and how works the Optimus Maximus:

Buy now the first OLED keyboard at EBAY: