I am not sure why this would be useful, but KeyScan integrated a color scanner in a Keyboard.
New Photos and background on the KeyScan Keyboard
The KeyScan KS810 features a 600dpi color scanner. The KeyScan scanner software supports direct scanning of business cards, photos, a newspaper clip, a bank note, a form or any other document. It supposedly automatically adjusts the scale for each document type. The KeyScan KS811 keyboard features besides a color scanner also a fingerprint and smart-card authentication system for secure access.
KeyScan will show both Scanner Keyboards at the CeBIT 2005 in Hanover (March 10-16th).
More details on KeyScan's site.
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