I purchased an Good Display 2.7" PN GDEW027W3-2. I ordered it with the adapter board.
Today I got it hooked to a lowly Arduino 3.3v 8Mhz Pro Mini.
I ran the sample program from Good Display: GDEW027W3_Arduino.ino Bingo!
I only post this so folks on the fence about e-Paper feel more comfortable. Of course now I have to write the code to display what I want.