I want to try to send GPS data (strings) wirelessly from one arduino to another over perhaps xbee, before I attempt this, is it even possible?
I would be transmitting the data back to the computer and then parsing it and putting in google maps or something similar. Basically I just want it to send out a message every 15 seconds of the position of the board that is moving.
xbee or wi-fi shield should do. For simplicity, wifi shield is better.
but the major issue is it just came out, the software is not stable.
(It will be better as time goes by :D)
One more thing:
Xbee - UART
WIFI shield - SPI
One sticking point is that the "standard" Arduino only has one serial port, but there are ways to work around that.
If you don't need to send info to the "GPSed" Arduino, you could connect the GPS to the serial input, and the Xbee to the serial output.
Or, you could use the SoftSerial library to send the message out.
Or, you could use an Arduino Mega to get extra serial ports.
So, the answer to your question is "yes".
Yes, this is possible.
I am currently working on a project which is successfully sending data from the Serial based GPS device connected to Pins 0 and 1 using an XBee Pro connected using the AdaFruit XBee adapters connected to Pins 2 and 3 using the NewSoftSerial library.