Eeek! I am currently bouncing up and down and off the walls with excitement because the Universal Screw-Block Proto-Shield for Arduino Kickstarter project I've been working on with by chum, Duane ...

The chip expects 3.3 V logic so he made use of a MC74LVX50 hex buffer to tailor the Arduino’s 5 V. Currently he’s working on revision two of the shield, which will include SPI flash memory.