More good news:
EA just released demo code for the 2.7"-EA-Board:
Instructions: 2.7 inch E-paper Display - Embedded Artists
Demo code: http://www.embeddedartists.com/sites/default/files/support/displays/epaper/epaper_arduino_130412.zip
Edit: They also provide a library for the LM75A temp. sensor. Let's see if this works...