Will this work? has anyone attempted anything close? How many dedicated pins do the datalogger shields need, and how many for a LCD display. I'd think with a low refresh rate i could get away with a shift register controlled LCD and use only 3 or 4 pins. But what about the Data Logger?
You could use OpenLog (SparkFun OpenLog - DEV-13712 - SparkFun Electronics). It will take only 2 pins, Tx/Rx, which can be any pins with SoftwareSerial.