If youre somewhere with a wireless network, iPod touch instantly recognizes it. If it free Wi-Fi, youre good to go. Launch any one of your Wi-Fi-dependent apps, such as Safari or iTunes, and youre on. Some wireless networks may require a password, but iPod touch has that covered, too. Just enter the password once, and iPod touch remembers it. So the next time youre within range of that network, youre connected ...