The CueCat can actually become a very useful device. It has a red laser beam on the tip of its nose. As you know, objects appear red to us because they reflect the red wavelengths in the radiation spectrum. Hence, by firing off a red laser beam, and intercepting the reflected light, and analyzing it, the CueCat can determine the "redness" of the object being scanned.
The CueCat already has hardware that determines the wavelength of an intercepted light ray. (That's how it differentiates between black and white.) It is a simple matter to write software that will return the "redness" of the object being scanned. Furthermore, we all know that healthy human tissue is a bright pinkish red, and cancerous tissue is a dull whitish pink.
To wrap this all up, with the right software, the CueCat can serve as a colon cancer detector. All you do is fire up the new CueCat driver, stick the CueCat up your ass, and let it scan your colon. It will tell you if you're doing fine.