I have issues with my iPod Touch 4G where it disconnects from the access point for no apparent reason, and I need to go into the settings app and toggle the airplane mode to get the wifi working again.
Is there an app that I could run to automatically turn the wifi off and then turn it on again so that I don't have to waste so much time opening the settings and toggling airplane mode? I haven't been able to find one in the appstore.