looks like every key is actually a screen, like a mini tv. OLED is the latest technology and you'll soon see full sized screens for sale much like LCD and plasma. They're supposed to have a better image quality and what not, but i doubt it matters when the screens are less than an inch in size.
Sony made an 11'' OLED tv. The screen is only 3mm thick. They want $2500 for it though.
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