Gojohnnyboi on iPodTouchFans has released a converted for 2.X version of the WifiToggle application that allows you to switch on/off the Wifi on your iPod Touch/iPhone with a click off the application icon.
Here is a screenshot of what it shows once you have click the icon:
To make it work you need to type in these commands on MobileTerminal or just change the permissions using your SSH client:
chmod 0755 /Applications/WifiToggle.app/WifiToggle chmod -R 0755 /Applications/WifiToggle.app/Gojohnnyboi.framework
To download: CLICK ME