Why always SPI CS on pin 10?
Thank you, Ladyada, for this great display.
But why is TFT CS on pin 10?
Pin 10 is also the SPI CS for the Ethernet shield. Why not, for instance, pin 6:
Carefully lift pin 9 of the level shifter and connect it using a thin wire with pin 6 of the Arduino connector.
And voila, both the display and the ethernet shield is working: