Ker-BOOM. That's the thundering explosion of Amazon purchasing Touchco, a little company that makes incredibly cheap, infinitely multitouchable displays, and merging it into their Kindle division. Kindle Touch. It actually sounds kind of nice.
Touchco's touchscreen tech is designed to be cheap—under $10 a square foot—using a resistive display tech called interpolating force-sensitive resistance. What makes it more special is that unlike most resistive touchscreens, it's pressure sensitive, and can detect an infinite number of simultaneous touches. Plus, it's totally transparent (old school resistive touchscreen layers dim brightness and dull colors) and designed to work with full color LCD screens. (Bits has more on Touchco.)