Wi-Fi is automatically set and used in the itouch. It doesn't need to be set up.
no
Depends on the owner of the WiFi
All of the iPod Touches have wifi in them, so you can connect them to wifi.
There are no known iTouch viruses.
All you have to do is buy an itouch and take it apart.Now plz follow me here. take both apart and take the wifi adapter out of the itouch .Now put the frame of the itouch on the nano.then put the base of the itouch on. put the motherboard and wifi adapter on and it will look like an itouch but it will be your nano.
Using Safari over WiFi. You can turn on and approve WiFi in settings.
I don't think you can...
no
no the itouch will only connect to a wifi network it has no cellular capabilities
yes
you have to have wifi . in order to have wifi , you must be conneted to wireless internet nearby . to get to that = settings>wifi>choose a network
the iphone also has 3g capability's allowing you to browse the internet or use web apps anywhere the itouch needs to be on a wifi network to do any of that