This a guide that will show you how to temporarily change your MAC address. This can be useful for many reasons, none which I urge you to do. Since the IP Address of your iPod changes when you access different networks, the only thing your device can be identified with is it's Mac Address. If you do not want to leave your trace, you can spoof your MAC Address. However, I do NOT recommend doing so. This could also be helpful if a network blocked your MAC Address from accessing. If you change it, you have a fresh start. What you'll need: 1) Jailbroken iPod Touch/iPhone2) Term-vt100 Application First, to view your current MAC address you can go to Settings --> General --> About, and go down to Wi-Fi Address. Next, launch Term-vt100. To view your MAC address again, type in 'ifconfig' and press return. Your MAC Address is located at the bottom after "ether". Now to change it. Type in the command: 'ifconfig en0 ether 00:00:00:00:00:00'The zeroes should be your desired MAC Address. Remember that it should consist of 12 numbers/letters seperated by colons. After you type in the command, press return. Nothing should happen. Your cursor should move to the next line with the # sign. If something appears, you typed it in wrong or an error occurred. Try retyping it. Your screen should look like this: Now let's see if it worked. Type in 'ifconfig'. The same thing that came up earlier should come up again. Look down to the bottom where it says "ether". If it says the MAC address you typed in, it worked. This will not save if you reboot your iPod Touch. I am sure that there is a script you can run every time you boot it, but its not a big deal. I do not boot my iPod that often, and the command is relatively simple. Also, the changed MAC Address will not be reflected in Settings--> General--> About. To check your MAC Address, just enter 'ifconfig' and look for "ether".