This is going to sound like a rather stupid question ... but if I program my XBee module to sample analog 0 every 5 seconds, would that be sampling A0 on the wireless shield, if I have my XBee on the wireless shield? Are the analog/digital pins mapped from the shield to the XBee's analog/digital pins?
I am confused by this too. I have the Arduino Wireless Shield and an XBee compatible RN-XV (http://arduino.cc/forum/index.php/topic,100365.0.html). I think the answer to our question is the same, so hopefully someone answers one of the threads.
Looking at the schematic for that shield, the only connections between the shield and the Arduino that I see are to +5V, Gnd, TX, RX, and the 6 pin ICSP connector. So, it does not appear that the analog pins of the XBee are connected to the analog pins of the Arduino.