michaelwardsystems:
Hi s80
If I was you I would look at using the arduino FIO.
http://arduino.cc/en/Main/ArduinoBoardFio
What you cant see in the picture of the FIO is the xBee socket on the back of the board.Then you get a wifi adaptor with the same footprint as an xBee module:
https://www.sparkfun.com/products/10822
So now you have a really small arduino with wifi! So easy! and you don't have to worry about the power supply for your router and all that battery consuming jazz.The FIO is really cool because it has a lipo battery connector, so you just add something like this (below) to your cart, and you're well on your way:
https://www.sparkfun.com/products/341
Thanks, but I prefer the Arduino mega, so I'm ready for future development and to install more shield. For example I'd also install a motor shield.