I'm trying to come up with a way to make an arduino wireless access point. I've googled around for ages trying to find an answer to the problem but had no luck.
I believe this is what you are looking for:http://www.arduino-hacks.com/arduino-wifly-shield/
This is a shield that is able to setup an adhoc network but it does not provide a WiFi access point.
I believe this is what you are looking for:http://www.arduino-hacks.com/arduino-wifly-shield/hope that helps.