Pistons: A revolution for Redstone Circuitry

Most people probably like Pistons because they allow them to build hidden doors and traps.
I like them because they revolutionize redstone circuitry.

(Please note that I didn't try to find out if anyone has already build something similar beforehand, so it might be possible that what I'm showing is nothing new)

EDIT2:
World and schematics:
http://dl.dropbox.com/u/309751/minecr...

EDIT:
Forever A Troll from the Minecraft Forums posted this usefull list:
pTransistor - Tristate buffer(functioning like an AND gate)
ipTransistor - Inverted tristate buffer(functioning like an IMPLIES gate)
pPulser - Clock generator.
cTransistor - 2-to-1 multiplexer.
pcoPulser - Clock generator(with an inverted output as well).
4ppPulser - Quadruple clock generator.
pBMemory - A very crappy punched card reader.
PBM Array - A VERY EPIC punched card reader!

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  • 2011
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