Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
We do have 20x4 displays that will work with the Pi-Plate. They do obscure the buttons though. Some use these for panel-mount applications & run wire from the button pads on the Pi Plate to panel-mount buttons.