I dont know if this should be posted because this thread is so old, but i see it now so. Ill post this.
My school actually as a robotics team centered around an organization called FIRST, where we create wireless robots to compete in competitions, its different every year and anyone can make a team and join. Its not cheap though, 5k to just enter in your regional competitions. Another 5k for states i believe, havnt been to nationals. Year before i joined they were in nationals >.<
But yea, we make wireless robots every year.
FIRST url is http://www.usfirst.org/
We are entered into FRC.